@article{PismaZhETF.66.817, title = {Interaction of optical phonons with anisotropic imperfections}, author = {Falkovsky, L. A.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {66}, issue = {12}, pages = {817}, year = {1997}, doi = {}, url = {http://jetpletters.ru/ps/0/article_15559.shtml}, }