@article{RSMUP_1942__13__30_0,
     author = {Cherubino, Salvatore},
     title = {Sopra un certo pfaffiano},
     journal = {Rendiconti del Seminario matematico della R. Universit\`a di Padova},
     pages = {30--35},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {13},
     year = {1942},
     mrnumber = {17731},
     zbl = {0060.03101},
     language = {it},
     url = {http://archive.numdam.org/item/RSMUP_1942__13__30_0/}
}