Extensions of Attribute Grammars for Structured Document Queries.

Frank Neven Extensions of Attribute Grammars for Structured Document Queries. 99-116 http://link.springer.de/link/service/series/0558/bibs/1949/19490099.htm 1999 conf/dbpl/1999 DBPL db/conf/dbpl/dbpl1999.html#Neven99