@article{PismaZhETF.55.402,
    title = {Observation of spontaneous polarization at a junction of a high-$T_c$ superconductor with an insulator upon the phase transition to the superconducting state},
    author = {Lipson, A. G. and Sakov, D. M. and Gromov, V. V.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {55},
    issue = {7},
    pages = {402},
    year = {1992},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_19273.shtml},
}