1. ROWE, V.K., J.M. NORRIS, G.L. SPARSCHU, B.A. SCHWETZ, and P.J. GEHRING: Paper presented at 162nd National Meeting, American Chemical Society, Washington, D.C., September (1971).
2. VOS, J.G., J.H. KOEMAN, H.L. VAN DER MAAS, M.C. TEN NOEVER DE BRAUW, and R.H. DE VOS: Food Cosmet. Toxicol.8, 625 (1970).
3. ZITKO, V.: Bull. Environ. Contam. Toxicol.7, 105 (1972).
4. ZITKO, V., and O. HUTZINGER: American Chemical Society, Division of Water, Air and Waste Chemistry, Preprints of papers presented at 164th National Meeting,12(2), 157 (1972).
5. ZITKO, V., O. HUTZINGER, and P.M.K. CHOI: Environmental Health Perspectives1, 47 (1972).