TY - PRO AU - Ortiz-Monasterio,I. AU - Abdalla,O.S. AU - Pfeiffer,W. AU - Sayre,K.D. AU - Ammar,K. AU - Crossa,J. TI - Changes in nitrogen use efficiency in CIMMYT’s durum wheat PY - 2008/// CY - Bologna (Italy) PB - Societa Produttori Sementi S.p.A. Bologna*CIMMYT*ICARDA N1 - Abstract only ER -