title: minimization of tree pattern queries. authors: sihem amer-yahia , divesh srivastava , laks v. s. lakshmanan , sungran cho. venue: sigmod conference. year: 2001.0
title: minimization of tree pattern queries sihem amer-yahia , sungran cho , laks v. s. lakshmanan , divesh srivastava 2001. authors: nan. venue: international conference on management of data. year: nan