@book {Hajdu1936, title = {Das Mnemotechnische Schrifttum des Mittelalters}, year = {1936}, publisher = {Deutsches Institut der k{\"o}nigl. Ung. Peter Pazmany Universit{\"a}t}, organization = {Deutsches Institut der k{\"o}nigl. Ung. Peter Pazmany Universit{\"a}t}, address = {Budapest}, author = {Hajdu, Helga} }