@article{ZNSL_2001_276_a13,
     author = {O. M. Fomenko},
     title = {The representation of integers by positive quaternary quadratic forms},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {291--299},
     publisher = {mathdoc},
     volume = {276},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2001_276_a13/}
}