@article{PismaZhETF.17.522,
    title = {Percolation Level in a Three-dimensional Random Potential},
    author = {Skal, A. S. and Shklovskii, B. I. and Efros, A. L.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {17},
    issue = {9},
    pages = {522},
    year = {1973},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_23613.shtml},
}