TY - JOUR AU - V. I. Vovk AU - S. I. Maximov TI - General representation of physical quantities in scheme-invariant perturbation theory and its optimization JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1987 SP - 226 EP - 233 VL - 70 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1987_70_2_a7/ LA - ru ID - TMF_1987_70_2_a7 ER -