On the eliminatibility of ideal linguistic entities. - Urszula Wybraniec-Skardowska (Stud Logica, 1989)

An Application of Rough Set Theory in the Control of Water Conditions on a Polder. - Andrzej Reinhard; Urszula Wybraniec-Skardowska; Boguslaw Stawski; Tomasz Weber (Intelligent Decision Support, 1992)

A Logical Explication of the Concepts of Incomplete and Uncertain Information. - Urszula Wybraniec-Skardowska (SOFTEKS Workshop on Incompleteness and Uncertainty in Information Systems, 1993)

Extensions and Intentions in the Ruogh Set Theory. - Zbigniew Bonikowski; Edward Bryniarski; Urszula Wybraniec-Skardowska (Inf. Sci., 1998)

Calculus of Contextual Rough Sets in Contextual Spaces. - Edward Bryniarski; Urszula Wybraniec-Skardowska (J. Appl. Non Class. Logics, 1998)

Logical and Philosophical Ideas in Certain Formal Approaches to Language. - Urszula Wybraniec-Skardowska (Synth., 1998)

Foundations for the formalization of metamathematics and axiomatizations of consequence theories. - Urszula Wybraniec-Skardowska (Ann. Pure Appl. Log., 2004)

Rough Sets and Vague Sets. - Zbigniew Bonikowski; Urszula Wybraniec-Skardowska (RSEISP, 2007)

Meaning and Interpretation. I. - Urszula Wybraniec-Skardowska (Stud Logica, 2007)

Meaning and Interpretation. II. - Urszula Wybraniec-Skardowska (Stud Logica, 2007)

Vagueness and Roughness. - Zbigniew Bonikowski; Urszula Wybraniec-Skardowska (Trans. Rough Sets, 2008)

On Meta-Knowledge and Truth. - Urszula Wybraniec-Skardowska (Towards Mathematical Philosophy, 2009)

On Pairs of Dual Consequence Operations. - Urszula Wybraniec-Skardowska; Jacek Waldmajer (Logica Universalis, 2011)

Rough Pragmatic Description Logic. - Zbigniew Bonikowski; Edward Bryniarski; Urszula Wybraniec-Skardowska (Rough Sets and Intelligent Systems (2), 2013)

Special Issue Including Selected Papers from the "Logic and Linguistics" Workshop of the 4th World Congress on Universal Logic. - Marcos Lopes; Urszula Wybraniec-Skardowska (J. Log. Lang. Inf., 2014)

On the Mutual Definability of the Notions of Entailment, Rejection, and Inconsistency. - Urszula Wybraniec-Skardowska (Axioms, 2016)

Logical Squares for Classical Logic Sentences. - Urszula Wybraniec-Skardowska (Logica Universalis, 2016)

Zdzisław Pawlak: Man, Creator and Innovator ofComputer Sciences - Personal Memories. - Urszula Wybraniec-Skardowska (IJCRS (1), 2017)

On Certain Axiomatizations of Arithmetic of Natural and Integer Numbers. - Urszula Wybraniec-Skardowska (Axioms, 2019)

Deductive Systems in Traditional and Modern Logic. - Alex Citkin; Urszula Wybraniec-Skardowska (Axioms, 2020)

Operator Counterparts of Types of Reasoning. - Urszula Wybraniec-Skardowska (Logica Universalis, 2023)