K. Koyama
发表
Hiroshi Hoshikawa,
Kiyoshi Koyama,
H. Hoshikawa,
2013
.
K. Koyama,
Tomonori Hongu,
Junichi Toriumi,
2018
.
H. Hoshikawa,
K. Koyama,
T. Hirano,
2011
.
Hiroshi Hoshikawa,
K. Koyama,
Yasuo Mito,
2006
.
Hiroshi Hoshikawa,
Kiyoshi Koyama,
Yuzuru Naruse,
2004
.
Hiroshi Hoshikawa,
Kiyoshi Koyama,
H. Hoshikawa,
1998
.
Hiroshi Hoshikawa,
Kiyoshi Koyama,
H. Hoshikawa,
1999
.
S. Tatsuya,
H. Hoshikawa,
K. Koyama,
1992
.
K. Koyama,
H. Hoshikawa,
H. Hoshikawa,
1992
.