TY - JA AU - Walkley,J. AU - Petrie,A.H.K. TI - Studies on the nitrogen metabolism of plants. IV. On the changing nature of the relation between proteins and amino-acids SN - 1095-8290 PY - 1941/// N1 - Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0305-7364 T2 - Annals of Botany ER -