TY - RPRT TI - Algebraic direct methods for few-atoms structure models. AU - Herbert A Hauptman AU - D Y Guo AU - Hongliang Xu AU - Robert H Blessing PY - 2002 DO - 10.1107/s0108767302005597 UR - https://pubmed.ncbi.nlm.nih.gov/12089459/ ID - 12089459 ER -