@article{RSMUP_1990__83__139_0,
     author = {Alzati, A. and Bertolini, M.},
     title = {Quartic threefolds containing two skew double lines},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {139--151},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {83},
     year = {1990},
     mrnumber = {1066435},
     zbl = {0726.14027},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1990__83__139_0/}
}