(1)
Mączka, P.; Komsta, Łukasz; Skibiński, R.; Gumieniczek, A. Theoretical Studies on Keto-Enol Tautomerism, Gas Phase Acidity and Spectral Properties of Phenylbutazone. Curr. Issues Pharm. Med. Sci. 2010, 23 (4), 29-41.