@article{RLIN_2005_9_16_3_a1,
     author = {D'Onofrio, Luigi and Giannetti, Flavia and Greco, Luigi},
     title = {On weak {Hessian} determinants},
     journal = {Atti della Accademia nazionale dei Lincei. Rendiconti Lincei. Matematica e applicazioni},
     pages = {159--169},
     publisher = {mathdoc},
     volume = {Ser. 9, 16},
     number = {3},
     year = {2005},
     zbl = {1127.26007},
     mrnumber = {450957},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RLIN_2005_9_16_3_a1/}
}