The philosopher Roman Witold Ingarden was an important contributor to phenomenology, ontology, and aesthetics, who defended realist phenomenology against Husserl’s later transcendental idealism. In aesthetics, he elaborated a theory of the literary work according to which literary works have a complex structure and exist as intentional objects.
Wolenski, Jan. "Roman Witold Ingarden". The Literary Encyclopedia. First published 01 November 2010
[http://www.litencyc.com/php/speople.php?rec=true&UID=12591, accessed 27 September 2016.]