db/conf/cikm/LehnerRT96.html Wolfgang Lehner Thomas Ruf Michael Teschke CROSS-DB: A Feature-Extended Multidimensional Data Model for Statistical and Scientific Databases. 253-260 CIKM1996/P253.pdf 1996 conf/cikm/96 CIKM db/conf/cikm/cikm96.html#LehnerRT96 http://doi.acm.org/10.1145/238355.238547