Sozialer Fortschritt, Vol. 71 (2022), Iss. 3-4 : pp. 249–267
Sozialer Fortschritt, Vol. 64 (2015), Iss. 6 : pp. 131–138
Sozialer Fortschritt, Vol. 62 (2013), Iss. 6 : pp. 154–162
Sozialer Fortschritt, Vol. 63 (2014), Iss. 8 : pp. 186–190
