@article{ZaharievShandurkovGutzovetal.2021,
  author    = {Zahariev, Tsvetan and Shandurkov, Dimitar and Gutzov, Stoyan and Trendafilova, Natasha and Enseling, David and J{\"u}stel, Thomas and Georgieva, Ivelina},
  title     = {Phenanthroline chromophore as efficient antenna for Tb3+ green luminescence: A theoretical study},
  series = {Dyes and Pigments},
  volume    = {185},
  journal   = {Dyes and Pigments},
  issn      = {0143-7208},
  doi       = {10.1016/j.dyepig.2020.108890},
  pages     = {108890},
  year      = {2021},
  language  = {en}
}
@article{DanchovaAhmedBredoletal.2015,
  author    = {Danchova, Nina and Ahmed, Gulay and Bredol, Michael and Gutzov, Stoyan},
  title     = {Surface Functionalization of Silica Sol-Gel Microparticles with Europium Complexes},
  series = {Chemistry: Bulgarian Journal of Science Education},
  volume    = {24},
  journal   = {Chemistry: Bulgarian Journal of Science Education},
  number    = {6},
  issn      = {0861-9255},
  pages     = {849 -- 862},
  year      = {2015},
  language  = {en}
}