@ARTICLE{26583204_26601248_2008, 
	author = {G Bautin and V Kalyagin}, 
	keywords = {},
	title = {},
	journal = {},
	year = {2008},
	number = {1},
	pages = {29-35},
	url = {https://bijournal.hse.ru/en/2008--1/26601248.html},
	publisher = {},
	abstract = {},
	annote = {}
}