@article{GrueningHilbrands2018,
  author    = {Gr{\"u}ning, H. and Hilbrands, E.},
  title     = {Wassersensible Zukunftsst{\"a}dte - {\"U}berflutungsrisiken und Konzepte zur klimasensitiven Stadtentwicklung},
  series = {Transforming Cities},
  journal   = {Transforming Cities},
  number    = {2},
  issn      = {2366-7281},
  pages     = {38 -- 43},
  year      = {2018},
  language  = {de}
}
@article{GrueningSchmitz2018,
  author    = {Gr{\"u}ning, H. and Schmitz, T.},
  title     = {Systeme zur technischen Regenwasserfiltration: Kennwerte und Bemessung (Teil 2)},
  series = {gwf-Wasser und Abwasser},
  journal   = {gwf-Wasser und Abwasser},
  number    = {3},
  issn      = {0016-3651},
  pages     = {63 -- 69},
  year      = {2018},
  language  = {de}
}
@article{GrueningSchmitz2018,
  author    = {Gr{\"u}ning, H. and Schmitz, T.},
  title     = {Technische Regenwasserfitration: Systemanforderungen und Wirkmechanismen (Teil 1)},
  series = {gwf-Wasser und Abwasser},
  journal   = {gwf-Wasser und Abwasser},
  number    = {2},
  issn      = {0016-3651},
  pages     = {71 -- 77},
  year      = {2018},
  language  = {de}
}
@article{GrueningGrimm2015,
  author    = {Gr{\"u}ning, H. and Grimm, M.},
  title     = {Unwetter mit Rekordniederschl{\"a}gen in M{\"u}nster},
  series = {Korrespondenz Wasserwirtschaft},
  volume    = {8},
  journal   = {Korrespondenz Wasserwirtschaft},
  number    = {2},
  issn      = {1865-9926},
  pages     = {88 -- 93},
  year      = {2015},
  language  = {de}
}
@article{GrueningGrimm2015,
  author    = {Gr{\"u}ning, H. and Grimm, M.},
  title     = {Unwetter mit Rekordniederschl{\"a}gen in M{\"u}nster},
  series = {Korrespondenz Abwasser},
  volume    = {62},
  journal   = {Korrespondenz Abwasser},
  number    = {2},
  issn      = {1866-0029},
  pages     = {157 -- 162},
  year      = {2015},
  language  = {de}
}
@article{GrueningRoenzTeicheetal.2014,
  author    = {Gr{\"u}ning, H. and R{\"o}nz, N. and Teiche, U. and Arnold, B. and Laschet, U. and Schlag, O.},
  title     = {Regenwasserbehandlung in urban gepr{\"a}gten Einzugsgebieten kanalisierter Gew{\"a}sser},
  series = {Korrespondenz Wasserwirtschaft},
  volume    = {7},
  journal   = {Korrespondenz Wasserwirtschaft},
  number    = {Nr. 3},
  issn      = {1865-9926},
  pages     = {149 -- 153},
  year      = {2014},
  language  = {mul}
}
@article{GrueningPecherQuargVonscheidt2011,
  author    = {Gr{\"u}ning, H. and Pecher, K. H. and Quarg-Vonscheidt, J.},
  title     = {Wirksamkeit und Kosten dezentraler Regenwasserbehandlungssysteme - Systementwicklungen zur ortsnahen Regenwasserbehandlung},
  series = {Sonderheft Abwassertechnik, Ernst \& Sohn},
  journal   = {Sonderheft Abwassertechnik, Ernst \& Sohn},
  number    = {3},
  pages     = {53 -- 56},
  year      = {2011},
  language  = {de}
}
@article{HoppeMessmannGigaetal.2011,
  author    = {Hoppe, H. and Messmann, S. and Giga, A. and Gr{\"u}ning, H.},
  title     = {A real-time control strategy for separation of highly polluted storm water based on UV-Vis online measu-rements - from theory to operation},
  series = {Water Science \& Technology},
  volume    = {Vol 63, No 10},
  journal   = {Water Science \& Technology},
  pages     = {pp 2287 -- 2293},
  year      = {2011},
  language  = {en}
}
@article{GrueningHoppeMessmannetal.2011,
  author    = {Gr{\"u}ning, H. and Hoppe, H. and Messmann, S. and Giga, A.},
  title     = {Cost effectiveness of centralised and decentralised storm water treatment},
  series = {Water Science \& Technology},
  volume    = {Vol 63},
  journal   = {Water Science \& Technology},
  number    = {No 11},
  pages     = {pp 2598 -- 2604},
  year      = {2011},
  language  = {en}
}
@article{GrueningPecherQuargVonscheidt2011,
  author    = {Gr{\"u}ning, H. and Pecher, K. H. and Quarg-Vonscheidt, J.},
  title     = {Regenfilter vor Ort},
  series = {Der Gemeinderat},
  volume    = {54},
  journal   = {Der Gemeinderat},
  number    = {6},
  pages     = {44 -- 45},
  year      = {2011},
  language  = {de}
}
@article{GrueningHoppeLauersdorf2011,
  author    = {Gr{\"u}ning, H. and Hoppe, H. and Lauersdorf, U.},
  title     = {Qualitative Abflusssteuerung kanalisierter Gew{\"a}sser},
  series = {wasserwirtschaft wassertechnik wwt},
  volume    = {4 (April)},
  journal   = {wasserwirtschaft wassertechnik wwt},
  pages     = {33 -- 36},
  year      = {2011},
  language  = {mul}
}
@article{GrueningNiemann1997,
  author    = {Gr{\"u}ning, H. and Niemann, K.},
  title     = {Bericht zum 14. Bochumer Workshop "Betrieb von Kl{\"a}ranlagen - Optimierung und Kosten sparen"},
  series = {Korrespondenz Abwasser},
  volume    = {44},
  journal   = {Korrespondenz Abwasser},
  number    = {Nr. 1},
  pages     = {29 -- 42},
  year      = {1997},
  language  = {de}
}
@article{Gruening1995,
  author    = {Gr{\"u}ning, H.},
  title     = {Restgaspotential konventionell stabilisierter Kl{\"a}rschl{\"a}mme und M{\"o}glichkeiten einer weitergehenden Schlammbehandlung},
  series = {awt},
  journal   = {awt},
  number    = {Heft 5/1995},
  pages     = {49 -- 53},
  year      = {1995},
  language  = {de}
}
@article{GrueningHoppe2000,
  author    = {Gr{\"u}ning, H. and Hoppe, H.},
  title     = {Bericht zum 17. Bochumer Workshop "Mischwasser - quo vadis?"},
  series = {Korrespondenz Abwasser},
  volume    = {47},
  journal   = {Korrespondenz Abwasser},
  number    = {Nr. 3},
  pages     = {336 -- 344},
  year      = {2000},
  language  = {de}
}
@article{GrueningOrthKnollmann1997,
  author    = {Gr{\"u}ning, H. and Orth, H. and Knollmann, J.},
  title     = {Untersuchungen zum Gaspotential von Faulschl{\"a}mmen},
  series = {Korrespondenz Abwasser},
  volume    = {44},
  journal   = {Korrespondenz Abwasser},
  number    = {Nr. 5},
  pages     = {884 -- 894},
  year      = {1997},
  language  = {de}
}
@article{GrueningHoppeWeilandt2001,
  author    = {Gr{\"u}ning, H. and Hoppe, H. and Weilandt, M.},
  title     = {Online-Messung in Kanalisationsnetzen. Seminarbericht zur Veranstaltung der Ruhr-Universit{\"a}t am 30. November in Dortmund},
  series = {Korrespondenz Abwasser},
  volume    = {48},
  journal   = {Korrespondenz Abwasser},
  number    = {6},
  pages     = {763 -- 766},
  year      = {2001},
  language  = {de}
}
@article{GrueningHaeck2001,
  author    = {Gr{\"u}ning, H. and H{\"a}ck, M.},
  title     = {Online-Messungen zur Bestimmung der Abwasserbelastung in Kanalisationsnetzen},
  series = {wwt/awt},
  journal   = {wwt/awt},
  number    = {2},
  pages     = {27 -- 31},
  year      = {2001},
  language  = {de}
}
@article{GrueningOrth2002,
  author    = {Gr{\"u}ning, H. and Orth, H.},
  title     = {Investigations on the dynamics of the compositions of combined wastewater using on-line analyzers},
  series = {Water Science and Technology},
  volume    = {Vol. 45},
  journal   = {Water Science and Technology},
  number    = {No. 4/5},
  pages     = {77 -- 83},
  year      = {2002},
  language  = {en}
}
@article{Gruening2001,
  author    = {Gr{\"u}ning, H.},
  title     = {Technische M{\"o}glichkeiten zur Verbundsteuerung von Kanalnetz und Kl{\"a}ranlage},
  series = {Umwelt Mag@zin},
  journal   = {Umwelt Mag@zin},
  number    = {5/6},
  year      = {2001},
  language  = {de}
}
@article{GrueningOrth2004,
  author    = {Gr{\"u}ning, H. and Orth, H.},
  title     = {Untersuchungen zur Effizienz einer Verbundsteuerung auf der Basis innovativer Messtechniken.},
  series = {Korrespondenz Abwasser},
  volume    = {51},
  journal   = {Korrespondenz Abwasser},
  number    = {Nr. 7},
  pages     = {727 -- 735},
  year      = {2004},
  language  = {de}
}
@article{Gruening2003,
  author    = {Gr{\"u}ning, H.},
  title     = {Entw{\"a}sserungsverfahren in Wasserschutzgebieten},
  series = {bi-bauwirtschaftliche Informationen-UmweltBau},
  journal   = {bi-bauwirtschaftliche Informationen-UmweltBau},
  number    = {Nr. 5 Oktober},
  pages     = {54 -- 60},
  year      = {2003},
  language  = {mul}
}
@article{DudeyGruening2005,
  author    = {Dudey, A. and Gr{\"u}ning, H.},
  title     = {Ber{\"u}cksichtigung durchl{\"a}ssig befestigter Oberfl{\"a}chen bei der Geb{\"u}hrenkalkulation},
  series = {Kommunale Steuer-Zeitschrift},
  volume    = {54},
  journal   = {Kommunale Steuer-Zeitschrift},
  number    = {Nr. 2},
  pages     = {26 -- 29},
  year      = {2005},
  language  = {de}
}
@article{BelkeGruening2004,
  author    = {Belke, R. and Gr{\"u}ning, H.},
  title     = {Realisierung eines großvolumigen Sammlersystems zur Regenwasserbewirtschaftung im M{\"o}nchengladbacher Stadtgebiet},
  series = {Korrespondenz Abwasser},
  volume    = {51},
  journal   = {Korrespondenz Abwasser},
  number    = {Nr. 12},
  pages     = {1340 -- 1344},
  year      = {2004},
  language  = {de}
}
@article{ScharbatkeGrueningLauersdorfetal.2005,
  author    = {Scharbatke, D. and Gr{\"u}ning, H. and Lauersdorf, U. and Heringer, R. and Berges, V.},
  title     = {Umsetzung eines Konzeptes zur Regenwasserbehandlung im beengten Wuppertaler Stadtgebiet},
  series = {bi-bauwirtschaftliche Informationen-UmweltBau},
  volume    = {Nr. 4},
  journal   = {bi-bauwirtschaftliche Informationen-UmweltBau},
  number    = {Juli/August},
  pages     = {36 -- 41},
  year      = {2005},
  language  = {de}
}
@article{GrueningScharbatkeLauersdorfetal.2005,
  author    = {Gr{\"u}ning, H. and Scharbatke, D. and Lauersdorf, U. and Heringer, R.},
  title     = {Der Entlastungssammler Wupper},
  series = {bi-bauwirtschaftliche Informationen-UmweltBau},
  volume    = {Nr. 2},
  journal   = {bi-bauwirtschaftliche Informationen-UmweltBau},
  number    = {April},
  pages     = {4 -- 8},
  year      = {2005},
  language  = {de}
}
@article{HoppeGruening2007,
  author    = {Hoppe, H. and Gr{\"u}ning, H.},
  title     = {Bericht zum Workshop "Niederschlagswasser in Trennsystemen - gesteigerte Anforderungen und innovative Konzepte" der Dr. Pecher AG, 7. November 2006 in Bochum},
  series = {Korrespondenz Abwasser},
  volume    = {54},
  journal   = {Korrespondenz Abwasser},
  number    = {8},
  pages     = {779 -- 780},
  year      = {2007},
  language  = {de}
}
@article{GrueningNolteSpinnraekeretal.2007,
  author    = {Gr{\"u}ning, H. and Nolte, C. and Spinnr{\"a}ker, H. and Pecher, D.},
  title     = {Von der Planung bis zur Bewirtschaftung eines Sammlersystems mit 85.000 m³ Nutzvolumen in M{\"o}nchengladbach},
  series = {GWF Wasser - Abwasser},
  journal   = {GWF Wasser - Abwasser},
  number    = {4},
  pages     = {38 -- 40},
  year      = {2007},
  language  = {de}
}
@article{Gruening2007,
  author    = {Gr{\"u}ning, H.},
  title     = {Niederschlagsentw{\"a}sserung im Trennverfahren - Kategorisierung der Verkehrsfl{\"a}chen},
  series = {ABWASSERREPORT},
  journal   = {ABWASSERREPORT},
  number    = {3.07},
  pages     = {4 -- 7},
  year      = {2007},
  language  = {de}
}
@article{HoppeGruening2007,
  author    = {Hoppe, H. and Gr{\"u}ning, H.},
  title     = {Neue Herausforderungen an integrierte Planungen von Misch- und Niederschlagswasserbehandlungsanlagen},
  series = {GWF Wasser-Abwasser},
  volume    = {148},
  journal   = {GWF Wasser-Abwasser},
  number    = {7-8},
  pages     = {548 -- 555},
  year      = {2007},
  language  = {de}
}
@article{Gruening2009,
  author    = {Gr{\"u}ning, H.},
  title     = {Regenwassereinleitungen in kanalisierte Gew{\"a}sser - Behandlungsm{\"o}glichkeiten und Kosten},
  series = {Korrespondenz Abwasser},
  volume    = {56},
  journal   = {Korrespondenz Abwasser},
  number    = {Nr. 2},
  pages     = {153 -- 157},
  year      = {2009},
  language  = {de}
}
@article{Gruening2008,
  author    = {Gr{\"u}ning, H.},
  title     = {Abflusssteuerung - quo vadis?},
  series = {Korrespondenz Abwasser},
  volume    = {55},
  journal   = {Korrespondenz Abwasser},
  number    = {Nr. 4},
  pages     = {358 -- 364},
  year      = {2008},
  language  = {mul}
}
@article{GrueningHoppe2007,
  author    = {Gr{\"u}ning, H. and Hoppe, H.},
  title     = {Niederschlagsentw{\"a}sserung im Trennverfahren - verlangt der Trennerlass zuviel?},
  series = {ABWASSERREPORT},
  journal   = {ABWASSERREPORT},
  number    = {4.07},
  pages     = {4 -- 8},
  year      = {2007},
  language  = {de}
}
@article{GrueningGigaQuargVonscheidt2010,
  author    = {Gr{\"u}ning, H. and Giga, A. and Quarg-Vonscheidt, J.},
  title     = {Regenwasserbehandlung in Kompaktanlagen},
  series = {VBI - Beratende Ingenieure},
  volume    = {7-8},
  journal   = {VBI - Beratende Ingenieure},
  pages     = {30 -- 33},
  year      = {2010},
  language  = {mul}
}
@article{HoppeMessmannGigaetal.2009,
  author    = {Hoppe, H. and Messmann, S. and Giga, A. and Gr{\"u}ning, H.},
  title     = {Options and limits of quantitative and qualitative online-monitoring of industrial discharges into municipal sewage systems},
  series = {Water Science \& Technology WST},
  volume    = {Vol 60},
  journal   = {Water Science \& Technology WST},
  number    = {No 4},
  pages     = {859 -- 867},
  year      = {2009},
  language  = {en}
}