TY - JOUR AU - I. A. Vakarchuk AU - Yu. K. Rudavskii AU - I. R. Yukhnovskii TI - Approximate renormalization group transformation in the~theory of phase transitions. I.~Differential equation of the~renormalization group JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1982 SP - 313 EP - 320 VL - 50 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1982_50_2_a12/ LA - ru ID - TMF_1982_50_2_a12 ER -