1. Penny,R.K., J.Mech.Engng.Sci.,6,1964,44–46.
2. Murakami,S., Iwatsuki,S., Int.J.Mech.Sci.,11,1969,897–909.
3. Takezono,S.,et al., Bull.JSME.,16,1973,171–178.
4. Takezono,S.,Nakatsukasa,M., Trans.2nd Conf.on SMiRT., 1973,L6/5.
5. Takezono,S.,Watanabe,Y., Trans.3rd Intl.Conf.on SMiRT., 1975,M3/7.