@article{ZNSL_1980_93_a9,
     author = {G. N. Maloletkin},
     title = {The construction of {Siegel} cups forms of genus~2 through cusp forms of genus~1},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {186--191},
     publisher = {mathdoc},
     volume = {93},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1980_93_a9/}
}