J. PlickaTechnical University of Prague Faculty of Nuclear Science and Physical Engineering Department of Nuclear Chemistry Břehová 7 115 19 Prague 1 (Czechoslovakia)
J. CabicarTechnical University of Prague Faculty of Nuclear Science and Physical Engineering Department of Nuclear Chemistry Břehová 7 115 19 Prague 1 (Czechoslovakia)
A. GosmanTechnical University of Prague Faculty of Nuclear Science and Physical Engineering Department of Nuclear Chemistry Břehová 7 115 19 Prague 1 (Czechoslovakia)
K. ŠtambergTechnical University of Prague Faculty of Nuclear Science and Physical Engineering Department of Nuclear Chemistry Břehová 7 115 19 Prague 1 (Czechoslovakia)