Beta assertive graphs : proofs of assertions with quantificationBellucci, Francesco; Chiffi, Daniele; Pietarinen, Ahti-VeikkoJournal of applied logics : IfCoLog journal of logics and their applications2021 / 23 p. : ill https://www.collegepublications.co.uk/downloads/ifcolog00044.pdf Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Exploring the beta quadrantPietarinen, Ahti-VeikkoSynthese2015 / p. 941-970 : ill http://dx.doi.org/10.1007/s11229-015-0677-5