TY - JOUR AU - Montanaro, A. AU - Bressan, A. TI - Contributions to foundations of probability calculus on the basis of the modal logical calculus $MC^\nu $ or $MC^\nu _\ast $ JO - Rendiconti del Seminario Matematico della Università di Padova PY - 1981 SP - 263 EP - 270 VL - 65 PB - Seminario Matematico of the University of Padua UR - http://archive.numdam.org/item/RSMUP_1981__65__263_0/ LA - en ID - RSMUP_1981__65__263_0 ER -