@article{PismaZhETF.112.387,
    title = {Lead-free semiconductors with high absorption:\\ insight into the optical  properties of K$_{\bf2}$GeSnBr$_{\bf6}$ and K$_{\bf2}$GeSnI$_{\bf6}$\\ halide double perovskites},
    author = {Houari, M. and Bouadjemi, B. and Abbad, A. and Lantri, T. and Haid, S. and Benstaali, W. and Matouguia, M. and Bentata, S.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {112},
    issue = {6},
    pages = {387},
    year = {2020},
    doi = {10.31857/S1234567820180081},
    url = {http://jetpletters.ru/ps/dx/10.31857/S1234567820180081},
}