@article{IM2_1971_5_6_a5,
     author = {S. Yu. Arakelov},
     title = {Families of algebraic curves with fixed degeneracies},
     journal = {Izvestiya. Mathematics },
     pages = {1277--1302},
     publisher = {mathdoc},
     volume = {5},
     number = {6},
     year = {1971},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1971_5_6_a5/}
}