TY - CONF A1 - Prescher, T. T1 - Combination of formal and non-formal Learning as an Element of Development of Education Systems: Distance Learning Program “School Management” of the Technical University of Kaiserslautern in Eritrea T2 - Materials of the international Forum “Current Trends in the Concepts and Strategies of Lifelong Learning”, St. Petersburg Y1 - 2012 UR - https://www.hb.fh-muenster.de/opus4/frontdoor/index/index/docId/13658 SP - 107 EP - 112 ER -