@article{PismaZhETF.45.85,
    title = {Spectral diffusion in glasses at low temperatures. The "burned-out hole" phenomenon and nonlinear resonant microwave and sound absorption},
    author = {Gal'perin, Yu. M. and Gurevich, V. L. and Parshin, D. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {45},
    issue = {2},
    pages = {85},
    year = {1987},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_18681.shtml},
}