

Eidos and eidetic variation in Husserl's phenomenology
pp. 88-102
in: Manfred Spitzer, Michael A. Schwartz, Michael A. Schwartz (eds), Phenomenology, language & schizophrenia, Berlin, Springer, 1992Abstract
Eidetic variation, eidetic intuition and the descriptive science of essences are elements of reasoning which are in constant implicit use in scientific work.