@article{DAN_1978_238_5_a1,
     author = {K. I. Babenko},
     title = {On a problem of {Gauss}},
     journal = {Doklady Akademii Nauk},
     pages = {1021--1024},
     publisher = {mathdoc},
     volume = {238},
     number = {5},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1978_238_5_a1/}
}