@article{PismaZhETF.61.808,
    title = {Observation of a new phase transition of the vortex lattice in a  single-domain $TmBa_2Cu_3O_{7-x}$ single crystal as it is rotated in an external magnetic field},
    author = {Petrenko, O. V. and Caplin D.., A. and Voronkova, V. I. and Lacey, D.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {61},
    issue = {10},
    pages = {808},
    year = {1995},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_18274.shtml},
}