▁ 1 9 7 1 . ▁ ▁La ▁Madonna ▁d ' O gn iss anti ▁di ▁Gi otto ▁restaur ata . ▁( G li ▁U ff izi ; ▁ 8 ) ▁Centro ▁Di , ▁Fir enze ▁ 1 9 9 2 . ▁▁ ▁Pitt ura ▁italiana ▁del ▁Due cent o ▁e ▁Tre cent o . ▁Catalog o ▁della ▁mostra ▁gi ott es ca ▁di ▁Fir enze ▁del ▁ 1 9 3 7 ▁a ▁cura ▁di ▁Giul ia ▁Sin ib ald i ▁e ▁Giul ia ▁Brun etti . ▁Sans oni , ▁Fir enze ▁ 1 9 4 3 . ▁ ▁. ▁ ▁External ▁links ▁ ▁Note : ▁while ▁reprodu ctions ▁of ▁Gi otto ' s ▁paint ings ▁at ▁external ▁websites ▁are ▁valuable , ▁att ribution s ▁may ▁be ▁mis leading . ▁Any ▁website ▁that ▁shows , ▁without ▁question , ▁the ▁fres co es ▁of ▁the ▁Upper ▁Church ▁of ▁St . ▁Francis ▁of ▁Ass isi ▁as ▁being ▁the ▁work ▁of ▁Gi otto , ▁is ▁ign oring ▁modern ▁scholar ship ▁on ▁the ▁matter . ▁Any ▁website ▁that ▁claims ▁Gi otto ▁was ▁placed ▁in ▁charge ▁of ▁the ▁decor ation ▁of ▁the ▁Upper ▁Church ▁or ▁was ▁selected ▁as ▁the ▁" most ▁suitable " ▁artist ▁for ▁its ▁decor ation ▁is ▁making ▁a ▁claim ▁based ▁on ▁lack ▁of ▁evidence . ▁▁▁▁ ▁Page ▁at ▁Web ▁Gallery ▁of ▁Art ▁ ▁sm AR Th istory : ▁The ▁E pi ph any ▁ ▁Gi otto ▁– ▁Biography , ▁Style ▁and ▁Art works ▁ ▁Gi otto ▁in ▁P ano pt icon ▁Virtual ▁Art ▁Gallery ▁