▁painting , ▁print - making ▁and ▁performance ▁art ▁in ▁Canada . ▁In ▁ 1 9 7 0 ▁she ▁co - f ounded ▁with ▁Robert ▁Sav o ie ▁and ▁René ▁Der ou in , ▁the ▁Association ▁des ▁grave urs ▁du ▁Québec ▁( l ater ▁Conseil ▁des ▁grave urs ▁du ▁Québec ). ▁From ▁ 1 9 7 7 ▁to ▁ 1 9 8 0 ▁as ▁Vice - Ch air ▁and ▁Gallery ▁Co ordin ator ▁at ▁Vé h ic ule ▁Art , ▁Pet ry ▁brought ▁many ▁national ▁and ▁international ▁artists ▁to ▁Montreal , ▁including : ▁Nan ▁Ho over , ▁Miller ▁and ▁Camer on , ▁and ▁Rein de er ▁Werk . ▁She ▁was ▁also ▁Vé h ic ule ▁Art ' s ▁delegate ▁to ▁Arte ▁F iera ▁( B olog na , ▁Italy ) ▁in ▁ 1 9 7 7 ▁and ▁ 1 9 7 8 , ▁and ▁was ▁instrument al ▁in ▁" est ab lish ing ▁the ▁gallery ▁as ▁the ▁main ▁ven ue ▁of ▁performance ▁art ▁in ▁Canada ". ▁ ▁Pet ry ’ s ▁work ▁is ▁found ▁in ▁public ▁collections ▁throughout ▁the ▁Commonwealth ▁including : ▁The ▁British ▁Museum ▁( Lond on ), ▁National ▁Gallery ▁of ▁Australia , ▁( Can ber ra ), ▁National ▁Library ▁of ▁Canada ▁( O tt awa ), ▁Canada ▁Council ▁Art ▁Bank ▁( O tt awa ), ▁Musée ▁d ' art ▁contempor ain ▁de ▁Montr éal , ▁Bibliothèque ▁et ▁Archives ▁national es ▁du ▁Québec ▁( Mont real ), ▁and ▁Confeder ation ▁Centre ▁Art ▁Gallery ▁( Char l ott et own ). ▁Her ▁work ▁is