Z-modules
Futa, Yuichi, Okazaki, Hiroyuki, Shidama, Yasunari
Functional Space Consisted by Continuous Functions on Topological Space
Yamazaki, Hiroshi, Miyajima, Keiichi, Shidama, Yasunari
Riemann Integral of Functions R into C
Miyajima, Keiichi, Kato, Takahiro, Shidama, Yasunari