Search for: [Subject and Keywords = GPR] OR [Subject and Keywords = multi\-channel] OR [Subject and Keywords = archaeology] OR [Subject and Keywords = Archiepiscopal Palace] OR [Subject and Keywords = Alcalá de Henares] OR [Subject and Keywords = georadar] OR [Subject and Keywords = wielokanałowość] OR [Subject and Keywords = archeologia] OR [Subject and Keywords = pałac biskupi] OR [Subject and Keywords = Alcalá de Henares] OR [Title = Extensive multi\-channel GPR mapping over the site of the ancient Archiepiscopal Palace of Alcala de Henares \(Spain\)] OR [Creator = Catanzariti, Gianluca] OR [Creator = Ramírez González, Ildefonso] OR [Creator = Morelli, Gianfranco]