1. Nishijima, S., Takeno, M., Okada, T. and Namba, S. ‘Impact tests of reinforced plastics at low temperatures’ CEC-ICMC San Diego (1981) KC-8.
2. ‘A simple method for charpy impact testing below 6K’;Jin;Advanced Cryogenic Engineering,1974
3. Kuraoka, Y., Hosoda, N., Nishijima, S., Okada, T. and Namba, S. ‘New apparatus for charpy impact tests at cryogenic temperatures’ CEC-ICMC San Diego (1981) KC-6.
4. Nishijima, S. and Okada, T. ‘Charpy impact test of cloth reinforced epoxy at low temperature’ ICMC-special conference Geneva (1980).