TY - JOUR AU - Alexander D. Kolesnik TI - Cyclic planar random evolution with four directions JO - Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica PY - 2004 SP - 27 EP - 32 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/BASM_2004_2_a2/ LA - en ID - BASM_2004_2_a2 ER -