Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1981_257_5_a8, author = {V. A. Plaksin}, title = {Representation of numbers as a sum of four squares of integers, two of which are prime}, journal = {Doklady Akademii Nauk}, pages = {1064--1066}, publisher = {mathdoc}, volume = {257}, number = {5}, year = {1981}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1981_257_5_a8/} }
V. A. Plaksin. Representation of numbers as a sum of four squares of integers, two of which are prime. Doklady Akademii Nauk, Tome 257 (1981) no. 5, pp. 1064-1066. http://geodesic.mathdoc.fr/item/DAN_1981_257_5_a8/