On the magnetoresistance of finite semiconductors G. González de la Cruz, Yu. G. Gurevich, V. V. Kucherenko and E. Ramirez de Arellano Europhys. Lett., 53 4 (2001) 539-543 Published online: 01 December 2003 DOI: 10.1209/epl/i2001-00186-5