@incollection{TUW-140144, author = {Ebner, A. and Werthner, Hannes}, title = {Operation and Maintaining Web Applications}, booktitle = {Web Engineering - Systematic Development of Web Applications}, year = {2006}, editor = {Kappel, Gerti and Pr{\"o}ll, Birgit and Reich, Siegfried}, publisher = {John Wiley and Sons}, address = {NY}, isbn = {0470015543} }