@ARTICLE{26583204_26647682_2009, 
	author = {N. Molotkova and I. Sakharov}, 
	keywords = {},
	title = {},
	journal = {},
	year = {2009},
	number = {1},
	pages = {9-15},
	url = {https://bijournal.hse.ru/en/2009--1/26647682.html},
	publisher = {},
	abstract = {},
	annote = {}
}