Fleksja w strukturze i ewolucji języka jako przedmiot badań językoznawczych

The focus of the author’s interest is the overwiev of various problems within the field of inlection. The author differentiates between the internal and external inflection and highlights paradigmatics and the descriptions of inflectional catergories. According to her, the research perfomed by Jerzy Kuryłowicz marked the breakthrough in the field and resulted in the introduction of the term: isomorphism. Structural descriptions were particularly important (the approaches of I. Bajerowa, M. Honowska,W.Rzepka), as well as normative ones (H. Satkiewicz and W. Książek – Bryłowa). The author compiles also the works concerned with literary language and inflectional categories in the history of the Polish language.