@article{oai:ir.soken.ac.jp:00005316,
 author = {SHIMAKAWA, Rhythm and KODAMA, Tadayuki and TADAKI, Ken-ichi and TANAKA, Ichi and HAYASHI, Masao and KOYAMA, Yusei},
 issue = {1},
 journal = {Monthly Notices of the Royal Astronomical Society Letters, Monthly Notices of the Royal Astronomical Society Letters},
 month = {Jun},
 pages = {L1--L5},
 title = {Identification of the progenitors of rich clusters and member galaxies in rapid formation at z > 2},
 volume = {441},
 year = {2014}
}