@book{ Solr-777405, title = {Variational methods with applications in science and engineering [E-Book]}, author = {Cassel, Kevin W.}, editor = {Cassel, Kevin W.}, address = {Cambridge ;}, publisher = {Cambridge University Press}, year = {2013}, pages = {413}, note = {englisch}, url = {https://ebookcentral.proquest.com/lib/fz/detail.action?docID=1182948} }