TY - JOUR AU - A. N. Zemlyakov TI - Elective Course “Calculus of Reality". Differential Equations as Mathematical Models of Real Processes. Chapter 1 JO - Matematičeskoe obrazovanie PY - 2004 SP - 19 EP - 55 IS - 4 UR - http://geodesic.mathdoc.fr/item/MO_2004_4_a1/ LA - ru ID - MO_2004_4_a1 ER -