000			00344nam a2200145Ia 4500
005			20260205102628.0
008			260111s9999||||xx |||||||||||||| ||und||
082			_a509 P94O
100			_aSkvirsky,D.
245		0	_aOn the track of discovery
260			_aMoscow _bProgress
300			_a189p.
690			_aScience ;Discovery
942			_cBK
999			_c249244 _d249244