@article{PismaZhETF.55.412, title = {Decay of the free precession of nuclear spins in a solid in a rotating coordinate system under magic-angle conditions; three-spin interactions}, author = {Mefed, A. E. and Yaroslavtsev, A. V. and Zobov, V. E. and Ponomarenko, A. V. and Popov, M. A.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {55}, issue = {7}, pages = {412}, year = {1992}, doi = {}, url = {http://jetpletters.ru/ps/0/article_19275.shtml}, }