1. Paleček, E., Naturwiss., 45, 186 (1958).
2. Paleček, E., Coll. Czech. Chem. Commun., 25, 2283 (1960).
3. Heyrovský, J., and Kalvoda, R., “Oscillographische Polarographie” (Akademie Verlag, Berlin, 1960).
4. Heyrovský, J., Chem. Tech., 9, 257 (1957).
5. Heyrovský, J., Anal. Chim. Acta, 12, 600 (1956).