@article{10_1090_S0894_0347_97_00223_3,
     author = {Ein, Lawrence and Lazarsfeld, Robert},
     title = {Singularities of theta divisors and the birational geometry of irregular varieties},
     journal = {Journal of the American Mathematical Society},
     pages = {243--258},
     publisher = {mathdoc},
     volume = {10},
     number = {1},
     year = {1997},
     doi = {10.1090/S0894-0347-97-00223-3},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-97-00223-3/}
}