Alsayed Algergawy Eike Schallehn Gunter Saake A New XML Schema Matching Approach Using Prüfer Sequences. 217-228 2008 DB&IS http://dx.doi.org/10.3233/978-1-58603-939-4-217 conf/balt/2008 db/conf/balt/dbis2008.html#AlgergawySS08