00507naa#a2200169#i#450# EN\\bibl\980 20260730074350.4 1992-5980 20131230b2013####ek#y0engy0150####ca RUS RU Stock market fluctuations simulation within lowly volatile and highly volatile periods Journal article rostov on don Don state technical University 2013 9 с. Journal article local Kirillov Kirill zh-szf.ru