@article{PismaZhETF.86.390,
    title = {Quadrupole spin-echo envelopes for Bi$_4$Ge$_3$O$_{12}$ single crystals doped with atoms of transition and rare earth elements},
    author = {Kravchenko, E. A. and Morgunov, V. G. and Orlov, V. G. and Kargin, Yu. F.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {86},
    issue = {5},
    pages = {390},
    year = {2007},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26571.shtml},
}