Chaitanya K. Baru Amarnath Gupta Bertram Ludäscher Richard Marciano Yannis Papakonstantinou Pavel Velikhov Vincent Chu XML-Based Information Mediation with MIX. 597-599 1999 conf/sigmod/99 SIGMOD Conference db/conf/sigmod/sigmod99.html#BaruGLMPVC99 conf/sigmod/99 http://doi.acm.org/10.1145/304182.304590 DiSC2_1/out/papers/sigmod/xmlbasedinformachamb.pdf