@article{PismaZhETF.23.709, title = {Plastic flow of crystalline $He^4$}, author = {Tsymbalenko, V. L.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {23}, issue = {12}, pages = {709}, year = {1976}, doi = {}, url = {http://jetpletters.ru/ps/0/article_27619.shtml}, }