00410cam a2200121 a 450000500170000000800410001703500130005804100080007124500740007926000540015370000460020770000350025320260501142815.0111227s1991    it af    b    000 0 eng d  a82221718  aeng00aThe altar-frontal of Sixtus IV in Assisi : research and restoration /  a[Roma] :bIstituto centrale per il restauroc19911 aIstituto centrale per il restauro (Italy)1 aVaroli-Piazza, Rosalia, editor