@article{BSL_2021_50_2_a2,
     author = {Parol, Aleksander and Pietrowicz, Krzysztof and Szalacha-Jarmu\.zek, Joanna},
     title = {Extended {MR} with {Nesting} of {Predicate} {Expressions} as a {Basic} {Logic} for {Social} {Phenomena}},
     journal = {Bulletin of the Section of Logic},
     pages = {205--227},
     publisher = {mathdoc},
     volume = {50},
     number = {2},
     year = {2021},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BSL_2021_50_2_a2/}
}