TY - JOUR AU - A. K. Cherkashin TI - Polysystem Modelling of Geographical Processes and Phenomena in Nature and Society JO - Mathematical modelling of natural phenomena PY - 2009 SP - 4 EP - 20 VL - 4 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.1051/mmnp/20094501/ DO - 10.1051/mmnp/20094501 LA - en ID - MMNP_2009_4_5_a1 ER -