1. Jonas J.J. & Semiatin S.L. : Formability & Workability of Metals. Plastic Instability and Flow Localization, ASM, Metals Park, Ohio, 1984.
2. Estrin Y. & Kubin L.P. : to be published, 1986.
3. Jaoul B. : J. Mech. Phys. Solids, 9, 61, 1961.
4. Kubin L.P. & Estrin Y. : J. de Physique, 47, 497, 1986.
5. Basinski Z.S. : Proc. Roy. Soc., A240, 229, 1957.