Stefano Bistarelli Francesco Santini 0001 A Definition of Sceptical Semantics in the Constellations Approach. 62-74 2022 LPNMR https://doi.org/10.1007/978-3-031-15707-3_6 conf/lpnmr/2022 db/conf/lpnmr/lpnmr2022.html#BistarelliS22