Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_2022_112_3_a14, author = {A. V. Ustinov}, title = {A {Short} {Proof} of the {Landsberg--Schaar} {Identity}}, journal = {Matemati\v{c}eskie zametki}, pages = {478--480}, publisher = {mathdoc}, volume = {112}, number = {3}, year = {2022}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_2022_112_3_a14/} }
A. V. Ustinov. A Short Proof of the Landsberg--Schaar Identity. Matematičeskie zametki, Tome 112 (2022) no. 3, pp. 478-480. http://geodesic.mathdoc.fr/item/MZM_2022_112_3_a14/