1. G.K. McEvoy (Ed.), AHFS Drug Information, The American Society of Health-System Pharmacist Inc., MD, 2001, p. 2294.
2. G.K. McEvoy (Ed.), AHFS Drug Information, The American Society of Health-System Pharmacist Inc., MD, 2001, pp. 2296 and 3486.
3. A.G. Gilman, T.W. Rall, A.S. Nies, P. Taylor (Eds.), Goodman and Gilman’s The Pharmacological Basis of Therapeutics, Pergamon Press, New York, 1991, p. 618.
4. Microassay for the simultaneous determination of theophylline and dyphylline in serum by high-performance liquid chromatography
5. Simultaneous determination of diprophylline, proxyphylline and theophylline serum by reversed-phase high-performance liquid chromatography