@article{IM2_1988_30_3_a4,
     author = {M. M. Kapranov},
     title = {On~cuspidal divisors on the modular varieties of elliptic modules},
     journal = {Izvestiya. Mathematics},
     pages = {533--547},
     year = {1988},
     volume = {30},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1988_30_3_a4/}
}