https://historica.unibo.it/entities/publication/1574097d-11b1-4715-b931-1b0f3ef1be69
Arsskrift - Hagemanns Kollegiums, 1931, numero unico
numerounico
https://historica.unibo.it/entities/publication/6c548cfe-4c79-4f5e-9665-1530b9b9fddf
Arsskrift - Hagemanns Kollegiums, 1933, numero unico
numerounico
https://historica.unibo.it/entities/publication/03b5dfdc-96a0-4eda-9c44-03dc80513e68
Arsskrift - Hagemanns Kollegiums, 1935, numero unico
numerounico