@article{PismaZhETF.41.251,
    title = {Observation of a series of surface excitons in ZnO associated with intrinsic two-dimensional surface subbands},
    author = {Panosyan, Zh. R. and Kasamanyan, Z. A. and Mailyan, A. R.},
    journal = {Письма в ЖЭТФ},
    volume = {41},
    issue = {6},
    pages = {251},
    year = {1985},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_22163.shtml},
}