COMMENTATIONES PHY SICO-MATHEMATICAE ; 110. DISSERTATIONES ; NR 29 290,768 LAPATTO RISTO Biomedical applications of the PIXE / Proton Induced X-ray Emission / and the PIGE / Proton Induced Gammaray Emission / methods : Academic dissertation / by Risto Lapatto ; University of Helsinki. - Helsinki : University, 1990. - [3], 46 s. ; 26 cm (Commentâtiones Physico-Mathematicae ; 110.Disserta tiones ; nr 29)