@article{PismaZhETF.44.207,
    title = {Focusing properties of shaped multilayer x-ray mirrors},
    author = {Aristov, V. V. and Gaponov, S. V. and Genkin, V. M. and Gorbatov, Yu. A. and Erko, A. I. and Martynov, V. V. and Matveev, L. A. and Salashchenko, N. N. and Fraerman, A. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {44},
    issue = {4},
    pages = {207},
    year = {1986},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_21023.shtml},
}