Symbolic knowledge extraction from opaque ML predictors in PSyKE: Platform design & experiments (article in journal, 2022) — Federico Sabbatini, Giovanni Ciatto, Roberta Calegari, Andrea Omicini | Special Issue for the 22nd Workshop “From Objects to Agents'' (WOA 2021) (editorial / introduction / preface, 2022) — Roberta Calegari, Giovanni Ciatto, Andrea Omicini, Giuseppe Vizzari | Fifty Years of Prolog and Beyond (article in journal, 2022) — Philipp Körner, Michael Beuschel, João Barbosa, Vítor Santos Costa, Verónica Dahl, Manuel V. Hermenegildo, Jose F. Morales, Jan Wielemaker, Daniel Diaz, Salvador Abreu, Giovanni Ciatto | Graph Neural Networks as the Copula Mundi between Logic and Machine Learning: A Roadmap (paper in proceedings, 2021) — Andrea Agiollo, Giovanni Ciatto, Andrea Omicini |