1. 1686 (Some biological properties of 2-(4-Isobutylphenyl) -propionic acid);Adams, S.S.; Cliffe, E.E.; Lessel, B.; Nicholson, J.S.;J. pharm. Sci,1967
2. (Clinical measurement of the anti-inflammatory effect of salicylates in rheumatoid arthritis);Boardman, P.L.; Hart, F.;Brit. med. J,1967
3. (Clinical trials of a new drug, Ibufenac, in the treatment of rheumatoid arthritis. A preliminary report);Chalmers, T.M.;Ann. rheum. Dis,1963
4. Co-operating Clinics Committee of the American Rheum. Ass;Arthr. and Rheum,1965
5. Hart, F. Dudley, and Boardman, P. L. (1965). Ann. rheum. Dis., 24,61 (Ibufenac (4-isobutylphenyl acetic acid).