@book
{TN_libero_mab2,
author = {
Johnston, Robert S.
},
title = {
Compressive strength of column web plates and wide web columns
},
publisher = {Government Printing Office},
year = {1926},
booktitle = {Technologic papers of the Bureau of Standards ; no. 327 (part of vol. 20)},
address = {
Washington
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}