• Another side of categorical propositions : the Keynes-Johnson octagon of oppositionsMoktefi, Amirouche; Schang, FabienHistory and philosophy of logic2023 / p. 459-475 https://doi.org/10.1080/01445340.2022.2143711 https://www.scopus.com/sourceid/4700152837 https://www.scopus.com/record/display.uri?eid=2-s2.0-85146684946&origin=inward&txGid=79fa919ac529ed20401e9c081ff4c063 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=HIST%20PHILOS%20LOGIC&year=2023 https://www.webofscience.com/wos/woscc/full-record/WOS:000913717900001