The thesis deals with the project of interpretative semantics as it has been developed by the French linguist François Rastier. The aim of the thesis is twofold: Firstly, to introduce and to further elaborate on the principles of this theory. Secondly, to point out possible benefits of Rastier's project for interpretation and analysis of literary texts. The key issue which characterizes the Rastier's semantics and which also represents the main axis of the present thesis can be put forward as follows. On one hand, the interpretative semantics grasps the text as a linguistic object which is open to various formal arrangements and to various articulations of semantic units. On the other hand, each text in its linguistic and non-linguistic context receives a particular shape and particular meaning. This general issue is discussed in detail in four mutually bound chapters where it is also applied on literary texts: (1) The first chapter deals with the notion of isotopy as the main textual principle. From the perspective of this concept a text cannot be grasped as a "big sentence" with an apriori determined syntax. Textuality rather resides in relationships between iterated (isotopic) elements which can be detected in the particular text on different linguistic levels (morphemes, lexies, sentences)....