@article{PismaZhETF.40.351, title = {Anisotropy of the upper critical field in exotic superconductors}, author = {Gor'kov, L. P.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {40}, issue = {8}, pages = {351}, year = {1984}, doi = {}, url = {http://jetpletters.ru/ps/0/article_19049.shtml}, }