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- H. Case ., J. Heterocycl . Chem . 8 , 1043 ( 1971 ).
- Z. Kolarik and U. Mullich ., Solvent Extr. Ion Exch . 15 , 361 ( 1997 ).
- K. S. Pitzer ., Activity Coefficients in Electrolyte Solutions , 2nd Ed., CRC , London , 1991 .
- Z. Kolarik and U. Mullich ., unpublished results.
- Work performed within the European Commission's research programme on nuclear fission safety, shared cost action, contract No. FI4I-CT96-0010.