@book
{TN_libero_mab2,
author = {
Kuhn, Paul
},
title = {
The initial torsional stiffness of shells with interior webs
},
publisher = {NACA},
year = {[1935]},
booktitle = {Technical notes / National Advisory Committee for Aeronautics ; 542},
address = {
[Washington]
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}