TY - RPRT TI - Interatomic force fields for silicas, aluminophosphates, and zeolites: Derivation based on ab initio calculations. AU - GJ Kramer AU - NP Farragher AU - van Beest BW AU - van Santen RA PY - 1991 DO - 10.1103/physrevb.43.5068 UR - https://pubmed.ncbi.nlm.nih.gov/9997885/ ID - 9997885 ER -