Simultaneous triple-registration of ictal SPECT, interictal SPECT and MR images for epilepsy studies: Method and validation. - Erkan U. Mumcuoglu; Fatih Nar; Yasemin Yardimci; Umut Koçak; Eser Lay Ergun; Bilge Volkan; Omer Ugur; Belkis Erbas (EUSIPCO, 2005)