Sentence:  While contradictions and oppositions within the system have been explained in terms of the inherent otherness (allology) of a system to its environment and the complementary system CS, the accordance of its properties is known as systems <WSD>autology</WSD>. The concept of systems <WSD>autology</WSD> closely relates to its gestalt or ganzheit. 
Meaning of the word marked with <WSD> tags:  (more generally) The ability of a concept to apply to itself; self reference.