1. W.R. Chappel, K.K. Petersen (Eds.), Molybdenum in the Environment, Marcel Dekker, New York, 1976.
2. P. Lanza, D. Ferri, P.L. Buldini, Analyst 105 (1980) 379.
3. G.D. Christian, J.L. Vandenbalck, G.J. Patriarche, Anal. Chim. Acta 108 (1979) 149.
4. C.M.G. van den Berg, Anal. Chem. 57 (1985) 1532.
5. S.N. Willie, S.S. Berman, J.A. Page, G.W. van Loon, Can. J. Chem. 65 (1987) 957.