@book
{TN_libero_mab2,
author = {
Messel, Harry
AND
Crawford, David F.
},
title = {
Electron-photon shower distribution function
Tables for lead, copper and air absorbers
},
publisher = {Pergamon Pr.},
year = {1970},
address = {
Braunschweig
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}