@article{oai:repository.dl.itc.u-tokyo.ac.jp:00000662,
 author = {Makishima, K. and Enoto, T. and Hiraga, J. S. and Nakano, T. and Nakazawa, K. and Sakurai, S. and Sasano, M. and Murakami, H},
 issue = {17},
 journal = {Physical Review Letters},
 month = {Apr},
 note = {UTokyo Research掲載「宇宙で最強な磁石天体が、磁力でわずかに変形している兆候を発見」 URI: http://www.u-tokyo.ac.jp/ja/utokyo-research/research-news/the-strongest-magnetic-stars-are-possibly-deformed/, UTokyo Research "The strongest magnetic stars are possibly deformed" URI: http://www.u-tokyo.ac.jp/en/utokyo-research/research-news/the-strongest-magnetic-stars-are-possibly-deformed/},
 title = {Possible Evidence for Free Precession of a Strongly Magnetized Neutron Star in the Magnetar 4U 0142+61},
 volume = {112},
 year = {2014}
}