@article{PismaZhETF.47.210,
    title = {Strings with boojums at their ends: topological defects of a new type in nematic liquid crystals},
    author = {Lavrentovich, O. D. and Rozhkov, S. S.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {47},
    issue = {4},
    pages = {210},
    year = {1988},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_16497.shtml},
}