@article{PismaZhETF.5.209, title = {Nuclear Magnetic Resonance at Simple Electronic Levels of Rare Earth Ions}, author = {Al'tshuler, S. A. and Teplov, M. A.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {5}, issue = {7}, pages = {209}, year = {1967}, doi = {}, url = {http://jetpletters.ru/ps/0/article_25143.shtml}, }