@article{PismaZhETF.32.187,
    title = {Reduction in integrable systems. The reduction group},
    author = {Mikhailov, A. V.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {32},
    issue = {2},
    pages = {187},
    year = {1980},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_21666.shtml},
}