@inbook{STU12b, title = {Principal Component Analysis Applied to SPECT and PET Data of Dementia Patients - A Review}, publisher = {InTech Europe}, year = {2012}, series = {Principal Component Analysis - Multidisciplinary Applications}, isbn = {978-953-51-0129-1}, thumbnail = {STU12b.jpg}, pages = {167-186}, author = {Elisabeth Stühler and Dorit Merhof}} howpublished = {},