Development of a laser tracker and its evaluation by flught testing / T. Ono, N. Okada, T. Inagaki, H. Iokuchi, 1997. - 28 p. - Текст : непосредственный.
Superheavy dark matter and parametric resonance / M. Arai, H. Hiro-Oka, N. Okada, S. Sasaki, 1998. - 14 kol. - Текст : непосредственный.
Okada N. Ground effects obtained from flight tests of ALFLEX / N.Okada,T.Sutto, 1997. - 12 p. - Текст : непосредственный.