Helmut Paul, Oliver Jäkel, Oksana Geithner,
"The ratio of stopping powers of water and air for dosimetry applications in tumor therapy"
, in Nucl. Instr. Meth. B, Vol. 256, Seite(n) 561 - 564, 2007
Original Titel:
The ratio of stopping powers of water and air for dosimetry applications in tumor therapy