1. Extraction of europium from acidic aqueous solutions into nitrobenzene by dicarbolide in the presence of polyethylene glycol
2. Europium and cerium extraction by the nitrobenzene solution of dicarbolide in the presence of polyethylene glycols
3. P. Vaftura , E. Makrlik , J. Rais J. M. Kyrs ,Extraction of Some Divalent and Trivalent Metals by Dicarbolide Solution in the Presence of Various Polyethylene Glycols., Poster 80 – 124 , ISEC 80, Liege , Belgium , 1980 .
4. M. Benesova , L. Kuca , M. Kyrs , H. Petrfcilova , J. Rais ,Management of Alpha Contaminated Wastes.International Atomic Energy Agency , Vienna (IAEA-SM-246/72), 1981 , p. 563 .
5. EXTRACTION SYSTEMS USING BIS-1,2-0ICARBCILYLC0BALTATE ANO POLYOXONIUM COMPOUNDS FOR LANTHANIOE SEPARATIONS