Voir la notice de l'article provenant de la source Math-Net.Ru
@article{FAA_1967_1_1_a0, author = {V. I. Arnol'd}, title = {Characteristic class entering in quantization conditions}, journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a}, pages = {1--14}, publisher = {mathdoc}, volume = {1}, number = {1}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/FAA_1967_1_1_a0/} }
V. I. Arnol'd. Characteristic class entering in quantization conditions. Funkcionalʹnyj analiz i ego priloženiâ, Tome 1 (1967) no. 1, pp. 1-14. http://geodesic.mathdoc.fr/item/FAA_1967_1_1_a0/