TY - JOUR AU - B. Nagy TI - On Boolean algebras of projections and prespectral operators JO - Informatics and Automation PY - 1984 SP - 187 EP - 190 VL - 163 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TRSPY_1984_163_a28/ LA - en ID - TRSPY_1984_163_a28 ER -