Suzuki, Tomohiko; Yuasa, Hajime; Machida, Yoshihiko (1996). "Phylogenetic position of the Japanese river otter Lutra nippon inferred from the nucleotide sequence of 224 bp of the mitochondrial cytochrome b gene". Zoological Science. 13 (4): 621–626. doi:10.2108/zsj.13.621. hdl:10126/3553. PMID8940916. S2CID44502293.
Suzuki, Tomohiko; Yuasa, Hajime; Machida, Yoshihiko (1996). "Phylogenetic position of the Japanese river otter Lutra nippon inferred from the nucleotide sequence of 224 bp of the mitochondrial cytochrome b gene". Zoological Science. 13 (4): 621–626. doi:10.2108/zsj.13.621. hdl:10126/3553. PMID8940916. S2CID44502293.
Suzuki, Tomohiko; Yuasa, Hajime; Machida, Yoshihiko (1996). "Phylogenetic position of the Japanese river otter Lutra nippon inferred from the nucleotide sequence of 224 bp of the mitochondrial cytochrome b gene". Zoological Science. 13 (4): 621–626. doi:10.2108/zsj.13.621. hdl:10126/3553. PMID8940916. S2CID44502293.
Suzuki, Tomohiko; Yuasa, Hajime; Machida, Yoshihiko (1996). "Phylogenetic position of the Japanese river otter Lutra nippon inferred from the nucleotide sequence of 224 bp of the mitochondrial cytochrome b gene". Zoological Science. 13 (4): 621–626. doi:10.2108/zsj.13.621. hdl:10126/3553. PMID8940916. S2CID44502293.