Nishida, Kazuya; Koizumi, Noriyuki; Satoh, Toshiyuki; Senga, Yutaro; Takemura, Takeshi; Watabe, Keiji; Mori, Atsushi (2015). "Influence of the domestic alien fish Rhynchocypris oxycephalus invasion on the distribution of the closely related native fish R. lagowskii in the Tama River Basin, Japan". Landscape and Ecological Engineering. 11: 169–176. doi:10.1007/s11355-014-0257-8. S2CID10488199.
Nishida, Kazuya; Koizumi, Noriyuki; Satoh, Toshiyuki; Senga, Yutaro; Takemura, Takeshi; Watabe, Keiji; Mori, Atsushi (2015). "Influence of the domestic alien fish Rhynchocypris oxycephalus invasion on the distribution of the closely related native fish R. lagowskii in the Tama River Basin, Japan". Landscape and Ecological Engineering. 11: 169–176. doi:10.1007/s11355-014-0257-8. S2CID10488199.