Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MS_1989__178_4_a0, author = {{\CYRV}.{\CYRA}. {\CYRB}{\cyra}{\cyrishrt}{\cyrk}{\cyro}{\cyrv} and {\CYRR}.{\CYRK}. {\CYRG}{\cyra}{\cyrz}{\cyri}{\cyrz}{\cyro}{\cyrv} and {\CYRN}.{\CYRH}. {\CYRI}{\cyrb}{\cyrr}{\cyra}{\cyrg}{\cyri}{\cyrm}{\cyro}{\cyrv}}, title = {{\CYRP}{\cyrr}{\cyri}{\cyrb}{\cyrl}{\cyri}{\cyrzh}{\cyre}{\cyrn}{\cyrn}{\cyrery}{\cyre} {\cyrs}{\cyri}{\cyrm}{\cyrm}{\cyre}{\cyrt}{\cyrr}{\cyri}{\cyri}}, journal = {Matemati\v{c}eskij sbornik}, pages = {435--450}, publisher = {mathdoc}, volume = {178}, number = {4}, year = {1989}, zbl = {0683.35004}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MS_1989__178_4_a0/} }
В.А. Байков; Р.К. Газизов; Н.Х. Ибрагимов. Приближенные симметрии. Matematičeskij sbornik, Tome 178 (1989) no. 4, pp. 435-450. http://geodesic.mathdoc.fr/item/MS_1989__178_4_a0/