1. and Annu. Rep. NMR Spectrosc., edited by Academic Press, New York, 18, 1 (1986).
2. and Annu. Rep. NMR Spectrosc., edited by Academic Press, New York, 11B, 35 (1981).
3. and Annu. Rep. NMR Spectrosc., edited by Academic Press, New York, 7, 118 (1977).
4. and Annu. Rep. NMR Spectrosc., edited by Academic Press, New York, 5A, 395 (1972).
5. and in Nitrogen NMR, edited by and p. 163. Plenum Press, New York (1973).