@article{PismaZhETF.84.305,
    title = {New polarization effect and collective excitation in $S=1/2$ quasi 1D antiferromagnetic quantum spin chain},
    author = {Demishev, S. V. and Semeno, A. V. and Ohta, H. and Okubo, S. and Tarasenko, I. E. and Ishchenko, T. V. and Sluchanko, N. E.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {84},
    issue = {5},
    pages = {305},
    year = {2006},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_16233.shtml},
}