TY - RPRT TI - MULTIPLE MOLECULAR FORMS OF BETA-GALACTOSIDASE. AU - S H APPEL AU - D H ALPERS AU - G M TOMKINS PY - 1965 DO - 10.1016/s0022-2836(65)80167-x UR - https://pubmed.ncbi.nlm.nih.gov/14255754/ ID - 14255754 ER -