[1. Ruzicka, J. H. A., H. Egan: Rep. Progr. Appl. Chem. 1971, 6o8-622.]Search in Google Scholar
[2. Thomas, B., J. A. Rougham, E. D. Waiters: J. Sci. Fd. Agric. 23 (1972) :1493-1498. 10.1002/jsfa.2740231215]Search in Google Scholar
[3. World Health Organization: Technical Report No. 505, 1972. ]Search in Google Scholar
[4. lewis, G. P., W. J. Jusko, L. L. Coughlin: J. Chron. Dis. 25 (1972) 717-726. 10.1016/0021-9681(72)90007-0]Search in Google Scholar
[5. Szadowski, D., H. Schultze: Arch. Hyg. 153 (1) (1969) 1-8.]Search in Google Scholar
[6. Menden, E. E., V. J. Elia, L. W. Mkhael, H. G. Petering: Environ. Sci. & Techn. 6 (9) (1972) 83o-832. 10.1021/es60068a008]Search in Google Scholar
[7. Nickless, G.: Chemistry and Industry, London, 1973, 715]Search in Google Scholar
