@article{CHEB_2024_25_1_a8, author = {H. Al-Assad}, title = {A generalisation of {Legendre's} three-square theorem}, journal = {\v{C}eby\v{s}evskij sbornik}, pages = {127--137}, publisher = {mathdoc}, volume = {25}, number = {1}, year = {2024}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/CHEB_2024_25_1_a8/} }