000			00544nam a2200133Ia 4500
008			211224s9999 xx 000 0 und d
020			_a9780792348344
082			_a572 .545 ELM
245		0	_aBiological nitrogen fixation for the 21st century : proceedings of the 11th international Congress on nitrogen fixation, Institut Pasteur, Paris, France, July 20-25, 1997
260			_aDordrecht ; Boston: _bKluwer Academic Publishers, _c1998
300			_axx, 708 p. : ill. ; 25 cm
650			_aNitrogen - Fixation - Congresses
700			_aElmerich, C
999			_c30799 _d30799