TY  - BOOK
AU  - Messel,H.
AU  - Crawford,D.F.
TI  - Electron-photon shower distribution function : tables for lead, coppertand air absorbers
U1  - 537.5 MES C 
PY  - 1970///.
CY  - Oxford : 
PB  - Pergamon Press, 
KW  - Cascade shower
KW  - Physical Processes
ER  -