Comparative Analysis of Five XML Query Languages A. Bonifati, S. Ceri Available in: PDF Published in March 2000 (Vol.29 No.1)
A Survey of Logical Models for OLAP Databases P. Vassiliadis, T. Sellis Available in: PDF Published in December 1999 (Vol.28 No.4)
An Overview and Classification of Mediated Query Systems R. Domenig, K. Dittrich Available in: PDF Published in September 1999 (Vol.28 No.3)
