[16] Bischof, Lukas; Gajowniczek, Joanna; Maikämper, Moritz (2013): Study to Prepare the Report on Progress in the Development of Quality Assurance Systems in the Various Member States and on Cooperation Activities at European Level, blz. 27.
[16] Bischof, Lukas, Gajowniczek, Joanna, Maikämper, Moritz (2013): Study to Prepare the Report on Progress in the Development of Quality Assurance Systems in the Various Member States and on Cooperation Activities at European Level, S. 27.