1. RUHEMANN, H. The Cleaning of Paintings, Faber & Faber, London, pp. 269-279.
2. FELLER, R. L., STOLOW, N., and JONES, E. H. On Picture Varnishes and Their Solvents, Press of Case Western Reserve University, pp. 154-164.
3. FELLER, R. L., STOLOW, N., and JONES, E. H. On Picture Varnishes and Their Solvents, Press of Case Western Reserve University, p. 155.