Hydrogen Plasma Annealing of ZnO Films Deposited by Magnetron Sputtering with Third Electrode. - Kanji Yasui; Yutaka Ooshima; Yuichiro Kuroki; Hiroshi Nishiyama; Masasuke Takata; Tadashi Akahane (IEICE Trans. Electron., 2009)

The Parity Hamiltonian Cycle Problem in Directed Graphs. - Hiroshi Nishiyama; Yukiko Yamauchi; Shuji Kijima; Masafumi Yamashita (ISCO, 2016)

The parity Hamiltonian cycle problem. - Hiroshi Nishiyama; Yusuke Kobayashi 001; Yukiko Yamauchi; Shuji Kijima; Masafumi Yamashita (Discret. Math., 2018)

Hamiltonian cycles in covering graphs of trees. - Pavol Hell; Hiroshi Nishiyama; Ladislav Stacho (Discret. Appl. Math., 2020)