References
- Hauser , U. , Oestreich , V. and Rohrweck , D. 1977 . Z. Phys. A , 280 : 125 – 125 .
- Zollner , H. , Krasser , W. and Woike , Th. 1989 . Chem. Phys. Lett. , 161 : 497 – 497 .
- Tritt-Goc , J. and Piślewski , N. 1986 . Chem. Phys. , 102 : 133 – 133 .
- Tritt-Goc , J. and Piślewski , N. 1985 . Phys. Status Solidi , 87 : K41 – K41 .
- Tritt-Goc , J. and Piślewski , N. 1987 . Phys. Status Solidi , 100 : K57 – K57 .
- Tritt-Goc , J. and Piślewski , N. 1993 . J. Phys. Chem. Solids , 54 : 123 – 123 .
- Tritt-Goc , J. and Piślewski , N. 1994 . Molec. Phys. , 83 : 949 – 949 .
- Tritt-Goc , J. 1995 . J. Phys. Chem. Solids , 56 : 935 – 935 .
- Alvarez , A.G. , Aymonino , P.J. , Baran , E.J. , Gentil , L.A. , Lanfranconi , A.H. and Varetti , E.L. 1976 . J. inorg. Chem. , 38 : 221 – 221 .
- Castellano , E.E. , Piro , O.E. and Rivero , B.E. 1977 . Acta Crystallogr. B , 33 : 1725 – 1725 .
- Navaza , A. and Piro , O. 1995 . J. solid State Chem. , in press
- Look , D.C. and Lowe , I.J. 1966 . J. chem. Phys. , 44 : 3437 – 3437 .
- Pake , G.E. 1948 . J. chem. Phys. , 16 : 327 – 327 .
- Navaza , A. private communication
- Tritt-Goc , J. and Piślewski , N. 1995 . Solid State nucl. magn. Reson. , in press
- Blombergen , N. , Purcell , E.M. and Pound , R.V. 1948 . Phys. Rev. , 73 : 679 – 679 .
- Gutowski , H.S. and Pake , G.E. 1950 . J. phys. Chem. , 18 : 162 – 162 .
- Slotfeldt-Ellingsen , E. and Pederson , B. 1977 . J. Phys. Chem. Solids , 38 : 65 – 65 .