@article{PismaZhETF.47.340,
    title = {Accumulation of the decay products of nonequilibrium optical  phonons in a $GaAs-AI_xGa_{1-x}As$ superlattice},
    author = {Vainert, Kh. and Zhukauskas, A. and Latinis, V. and Styapankyavichyus, V.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {47},
    issue = {7},
    pages = {340},
    year = {1988},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_16526.shtml},
}