@article{RSMUP_1954__23__277_0,
     author = {Roth, Leonard},
     title = {Improperly abelian varieties},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {277--289},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {23},
     year = {1954},
     mrnumber = {65966},
     zbl = {0059.14603},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1954__23__277_0/}
}