@article{CM_1991__79_2_231_0,
     author = {Hulek, Klaus and Kahn, Constantin and Weintraub, Steven H.},
     title = {Singularities of the moduli spaces of certain abelian surfaces},
     journal = {Compositio Mathematica},
     pages = {231--253},
     publisher = {Kluwer Academic Publishers},
     volume = {79},
     number = {2},
     year = {1991},
     mrnumber = {1117341},
     zbl = {0741.14022},
     language = {en},
     url = {http://www.numdam.org/item/CM_1991__79_2_231_0/}
}