@article{PismaZhETF.37.550,
    title = {Nonplanar contours and string tension in lattice gauge theories},
    author = {Saakyan, D. B.},
    journal = {Письма в ЖЭТФ},
    volume = {37},
    issue = {11},
    pages = {550},
    year = {1983},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_22890.shtml},
}