Please help me to find these two papers which published at PCI journal
Title: Fire Resistance of Post-Tensioned Structures
Author: Gustaferro, Armand H.
Volume/Number: Fire Resistance of Post-Tensioned Structures, n2
Date: March-April 1973


Title: Fire Endurance of Simply-Supported Prestressed Concrete Slabs
Author: Gustaferro, A.H. and Selvaggio, S.L.
Volume/Number: v12, n1
Date: February 1967
Pages: 37-52


Thanks