000			00374nam a2200121Ia 4500
008			220816s9999||||xx |||||||||||||| ||und||
020			_a9780821813966
245		0	_aVertex algebras for beginners _cKac, Victor G.,
250			_a2nd ed.
260			_aProvidence, R.I. : _bAmerican Mathematical Society, _c1998
300			_avi, 201 p. ; _c26 cm.
490			_x0821806432 (alk. paper)
999			_c2450 _d2450