TY - JOUR AU - V. P. Belavkin TI - Generalized uncertainty relations and efficient measurements in quantum systems JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1976 SP - 316 EP - 329 VL - 26 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1976_26_3_a3/ LA - ru ID - TMF_1976_26_3_a3 ER -