Riemann Integral of Functions from R into n-dimensional Real Normed Space
Miyajima, Keiichi, Korniłowicz, Artur, Shidama, Yasunari
Integral of Continuous Three Variable Functions
Endou, Noboru, Shidama, Yasunari
Normal Subgroup of Product of Groups
Okazaki, Hiroyuki, Arai, Kenichi, Shidama, Yasunari