@article{PismaZhETF.49.664,
    title = {New type of mixed state with positive magnetization in high-temperature superconductors},
    author = {Valiulin, E. G. and Druzhinin, A. A. and Startsev, V. E. and Shcherbakov, A. S.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {49},
    issue = {12},
    pages = {664},
    year = {1989},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17016.shtml},
}