@article{IM_1981__65_142847,
     author = {V.V. Shokurov},
     title = {Distinguishing {Prymians} from {Jacobians.}},
     journal = {Inventiones mathematicae},
     pages = {209--220},
     year = {1981},
     volume = {65},
     zbl = {0486.14007},
     url = {http://geodesic.mathdoc.fr/item/IM_1981__65_142847/}
}