\input zb-basic \input zb-ioport \iteman{io-port 70995694} \itemau{Theodoratos, Dimitri; Dalamagas, Theodore; Koufopoulos, Antonis; Gehani, Narain H.} \itemti{Semantic querying of tree-structured data sources using partially specified tree patterns} \itemso{CIKM, 712-719 (2005).} \itemcc{} \itemut{} \itemli{doi:10.1145/1099554.1099729} \end