TY - RPRT TI - Conformational changes in cyclic (D-Phe-Pro-Gly-D-Ala-Pro) upon complexation with Mg++. AU - I L Karle PY - 1984 DO - 10.1111/j.1399-3011.1984.tb02688.x UR - https://pubmed.ncbi.nlm.nih.gov/6698713/ ID - 6698713 ER -