Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_2023_113_1_a14, author = {Yu. L. Sachkov and E. F. Sachkova}, title = {Sub-Lorentzian {Problem} on the {Heisenberg} {Group}}, journal = {Matemati\v{c}eskie zametki}, pages = {154--157}, publisher = {mathdoc}, volume = {113}, number = {1}, year = {2023}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_2023_113_1_a14/} }
Yu. L. Sachkov; E. F. Sachkova. Sub-Lorentzian Problem on the Heisenberg Group. Matematičeskie zametki, Tome 113 (2023) no. 1, pp. 154-157. http://geodesic.mathdoc.fr/item/MZM_2023_113_1_a14/