000			00354nam a2200121Ia 4500
008			251112s9999||||xx |||||||||||||| ||und||
040			_aCNCLSA
245		0	_aProceedings of the National Academy Of Sciences of the United States of America
260			_c1993 _bAmerican Institute of Physics _aU.S.A
300			_aP. 1-678
300			_bV. 81
942			_cJRBV
999			_c20819 _d20819