Title: A Descriptive Approach to Language-Theoretic Complexity, Author: James Rogers
Title: Introduction to Formal Languages, Author: György E. Révész
Title: Introduction to Formal Languages, Author: György E. Révész
Title: Partiality, Modality and Nonmonotonicity, Author: Patrick Doherty
Title: Partiality, Truth and Persistence, Author: Tore Langholm