@article{PismaZhETF.54.562,
    title = {Generation of reflected second harmonic and phase transition in ferroelectric thin films},
    author = {Aktsipetrov, O. A. and Apukhtine, S. B. and Nikulin, A. A. and Vorotilov, K. A. and Mishina, E. D. and Sigov, A. S.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {54},
    issue = {10},
    pages = {562},
    year = {1991},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_19152.shtml},
}