TY - RPRT TI - An automatic method to generate force-field parameters for hetero-compounds. AU - Kristina Nilsson AU - David Lecerof AU - Emma Sigfridsson AU - Ulf Ryde PY - 2003 DO - 10.1107/s0907444902021431 UR - https://pubmed.ncbi.nlm.nih.gov/12554938/ ID - 12554938 ER -