Tsar Kostas, Landscape: Galatsi, 1956, Athens School of Fine Arts. https://dartabase.art/cite/europeana//1360/https___www_searchculture_gr_aggregator_edm_DigASFA_000187_00592_ZOG576

Tsar Kostas, Synthesis, 1959, Athens School of Fine Arts. https://dartabase.art/cite/europeana//1360/https___www_searchculture_gr_aggregator_edm_DigASFA_000187_00555_ZOG539