Mr. He Lin,
Chinese Society of Theoretical & Applied Mechanics,
15 Zhong Guan Cun Road, Beijing 100080, China.
Fax: +86 (10) 62559588 or 62561284.
E-mail: cstam@sun.ihep.ac.cn
> Published in Pure Appl. Chem.70(6), 1145-1228 (1998)