TY - RPRT TI - Stem diameter variations and cold hardiness in walnut trees. AU - T Améglio AU - H Cochard AU - F W Ewers PY - 2001 DO - 10.1093/jexbot/52.364.2135 UR - https://pubmed.ncbi.nlm.nih.gov/11604452/ ID - 11604452 ER -