TY - JOUR AU - P. Ya. Grozman TI - Classification of bilinear invariants of operators on tensor fields JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 1980 SP - 58 EP - 59 VL - 14 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_1980_14_2_a13/ LA - ru ID - FAA_1980_14_2_a13 ER -