00401nam a2200109Ia 4500008004100000082002300041100002100064245012500085260004000210300001500250650002600265140224s9999 xx 000 0 und d a576.8:581.133.1 M0 aPayne, J.W., ed. aMicro organisms and nitrogen sources; transport and utilization of aminoacids, peptides, proteins and related substrates aChichesterbJohn Wiley & Sonsc1980 axiii,870p. aMicrobiology,Nitrogen