Credit and Capital Markets – Kredit und Kapital, Vol. 52 (2019), Iss. 4 : pp. 505–526
Sozialer Fortschritt, Vol. 66 (2017), Iss. 5 : pp. 351–357
Credit and Capital Markets – Kredit und Kapital, Vol. 4 (1971), Iss. 2 : pp. 138–170