Warning message Node revision 628 not found in node Upper and low bounds of azimuthal numbers related to elementary wave functions of an elliptic cylinder . Perharps it was deleted. Lakshina Valeriya V. RussiaNizhni Novgorod National Research University «Higher School of Economics», Russia, 109028, Moscow, Bol. Trekhsvjatitel’skij per., 1-3/12, build. 8, vlakshina@hse.ru Author's articles Multiple Hedging on Energy Market