TY - RPRT TI - Critical-point analysis in protein electron-density map interpretation. AU - S Fortier AU - A Chiverton AU - J Glasgow AU - L Leherte PY - 1997 DO - 10.1016/s0076-6879(97)77010-1 UR - https://pubmed.ncbi.nlm.nih.gov/9379922/ ID - 9379922 ER -