%0 Journal Article %T Georadar study of early structures under the Hagia Sofia, Istanbul, Turkey %A Barba, Luis %A Blancas, Jorge %A Cappa, Marco %A Cura, Murat %A Crisci, Gino %A De Angelis, Daniela %A Miriello, Domenico %A Pecci, Alessandra %A Yavuz, Hasan B. %8 2015 %U http://www.rcin.org.pl/iae/dlibra/publication/edition/86853