Plastic deformation instabilities: Lambert solutions of Mecking-Lücke equation with delay. Hilout, Saïd, Boutat, Mohammed, Grilhé, Jean (2007) Mathematical Problems in Engineering
Progressive crushing of plastic cylindrical shells under axial impact. Ivanova, J., Parashkevova, L., Pastrone, F. (1998) Rendiconti del Seminario Matematico