References
Helmut Pape
(2015). C. S. Peirce on the dynamic object of a sign: from ontology to semiotics and back. Sign systems studies, 43 (4), 419-433.
(2015). Comment. Sign systems studies, 43 (4), 416-418.
with Leisinger, U. (1988). Was sind Quasi-Indikatoren?: Eine Einführung in Castañedas Theorie der Subjektivität. In M. Spitzer (Ed.). Psychopathology and philosophy (pp. 198-209). Berlin: Springer.
(). Artificial intelligence, G. W. Leibniz and C.S. Peirce: The phenomenological concept of a person. Études phénoménologiques, 5 (9-10), 113-146. https://doi.org/10.5840/etudphen198959/105.