(Only in print) Master of Arts thesis about Hans Anton's graphical Work by Karin Skawran in the 'Lantern' - A Journal of Knowledge and Culture, (1965 December - Vol. XV, No. 2, pp. 58/67 [3] )
Chapter in Afrikaans about Hans Anton Aschenborn also as a writer (please scroll down to the end) in wikisource by Pieter Cornelis Schoonees, who wrote about Hans Anton Aschenborn (translated): "On the field of artistically portraying our wildlife he is a pioneer …"[1])