https://www.culture.si/en/Forma_Viva_Open_Air_Steel_Sculpture_Collection,_Ravne_na_Koro%C5%A1kem
http://www.kleindenkmaeler.at/detail/forma_viva_peter_kaerst
https://www.kamra.si/digitalne-zbirke/item/forma-viva-ravne-1964-2050.html
https://fvr.si/peter-kaerst.html
https://fvr.si/zgodba.html
