TY - JOUR AU - A. N. Zemlyakov TI - Elective Course ``Calculus of Reality". Differential Equations as Mathematical Models of Real Processes. Chapter 2 JO - Matematičeskoe obrazovanie PY - 2005 SP - 9 EP - 65 VL - 32 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MO_2005_32_1_a2/ LA - ru ID - MO_2005_32_1_a2 ER -