TY  - THES
A1  - Ulrich, Ralf Matthias
T1  - Measurement of the proton air cross section using hybrid data of the Pierre Auger Observatory
Y1  - 2008
DO  - 10.23689/fidgeo-283
PB  - Univ. Karlsruhe
UR  - http://hdl.handle.net/11858/00-1735-0000-0001-31A6-C
ER  -