Reiko Heckel Rui Correia Carlos M. P. Matos Mohammad El-Ramly Georgios Koutsoukos Luis Filipe Andrade Architectural Transformations: From Legacy to Three-Tier and Services. 139-170 2008 Software Evolution http://dx.doi.org/10.1007/978-3-540-76440-3_7 series/springer/2008Mens db/series/springer/Mens2008.html#HeckelCMEKA08