For experimental results, one can turn to Renker, B.; Rietschel, H.; Pintschovius, L.; Gläser, W.; Brüesch, P.; Kuse, D.; Rice, M. J. (1973-05-28). "Observation of Giant Kohn Anomaly in the One-Dimensional Conductor K2Pt(CN)4Br0.3·3H2O". Physical Review Letters. 30 (22): 1144–1147. Bibcode:1973PhRvL..30.1144R. doi:10.1103/PhysRevLett.30.1144.
For experimental results, one can turn to Renker, B.; Rietschel, H.; Pintschovius, L.; Gläser, W.; Brüesch, P.; Kuse, D.; Rice, M. J. (1973-05-28). "Observation of Giant Kohn Anomaly in the One-Dimensional Conductor K2Pt(CN)4Br0.3·3H2O". Physical Review Letters. 30 (22): 1144–1147. Bibcode:1973PhRvL..30.1144R. doi:10.1103/PhysRevLett.30.1144.