8 6 ▁Col om bo ▁expanded ▁his ▁activities ▁to ▁theatre ▁( he ▁was ▁a ▁set ▁designer ▁for ▁the ▁Oper st he ater ▁in ▁Frankfurt ) ▁and ▁architecture . ▁ ▁External ▁links ▁▁ ▁Archive ▁Gian ni ▁Col om bo ▁ ▁Gian ni ▁Col om bo , ▁" Art ▁in ▁America ", ▁ 1 9 ▁June ▁ 2 0 1 3 ▁ ▁Bibli ographical ▁references ▁▁ ▁Document a ▁IV . ▁Catalogue ▁of ▁the ▁exhibition , ▁K ass el ▁ 1 9 6 8 . ▁▁ ▁K imp el , ▁Har ald ▁/ ▁St eng el , ▁Kar in : ▁document a ▁IV ▁ 1 9 6 8 , ▁Intern ationale ▁Aus stellung . ▁Eine ▁fotograf ische ▁Re kon stru ktion , ▁Bre men ▁ 2 0 0 7 , ▁. ▁ ▁Carol yn ▁Christ ov - B ak arg iev ▁ ▁and ▁Marcel la ▁Be cc aria ▁( eds ), ▁Gian ni ▁Col om bo . ▁Cast ello ▁di ▁Riv oli , ▁Museo ▁d ' Ar te ▁Contempor ane a ▁▁▁ 2 0 0 9 . ▁Milano , ▁Ski ra , ▁ 2 0 0 9 , ▁. ▁ ▁References ▁ ▁Category : 1 9 3 7 ▁birth s ▁Category : 1 9 9 3 ▁death s ▁Category : 2 0 th - century ▁Italian ▁pain ters ▁Category : Ital ian ▁male ▁pain ters ▁Category : 2 1 st - century ▁Italian ▁pain ters ▁Category : Ital ian ▁contemporary ▁artists ▁Category : Br era ▁Academy ▁al umn i ▁Category : Br era ▁Academy ▁fac ulty