ADVERSA RES - Braşovul cultural
Biblioteca Centrală Universitară Bucureşti
Biblioteca Natională a României
Carti on-line: www.bibliotastic.com/genres/33
Annuaire de peintures
Search for Cristache on:
http://www.paintings-directory.com
Contemporary Fine Art Gallery: shiftgallery.com/4.html
Galerie de artă(România): www.picturi.com/artisti/Cristache_Gheorghiu/picturi/
Galerie de artă (Franţa): www.artactif.com/gheorghiu
Galerie de artă(USA): www.artwanted.com/artist.cfm?artid=1934
Art on the Net: www.art.net