Text in book Feher, E.M. – «New ideas in art and education». – . – Unknown source. – P. 48-52.
Archive document : Manuscript Feher, E.M. – Some thought on extending the range of visual communication. – [s.d.]. – 5 p. – Manuscript. – Included in the file entitled «Feher, E.».
Archive document : Manuscript Feher, E.M. – Towards a theater of light. – [s.d.]. – 306 p. – Manuscript.