@article{PismaZhETF.80.118,
    title = {Porosity dependence of sound propagation in liquid $^4$He filled aerogel},
    author = {Matsumoto, K. and Matsuyama, Y. and Tayurskii, D. A. and Tajiri, K.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {80},
    issue = {2},
    pages = {118},
    year = {2004},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_7588.shtml},
}