Robert P. Apaya, Maria Bondí, Sarah L. Price The orientation of N-H...O=C and N-H...N hydrogen bonds in biological systems: How good is a point charge as a model for a hydrogen bonding atom? [Citation Graph (0, 0)][DBLP] Journal of Computer-Aided Molecular Design, 1997, v:11, n:5, pp:479-490 [Journal]