<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>10</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Sernadas, A.</style></author><author><style face="normal" font="default" size="100%">Sernadas, C.</style></author><author><style face="normal" font="default" size="100%">Ehrich, H.-D.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Object-Oriented Specification of Databases: An Algebraic Approach</style></title><secondary-title><style face="normal" font="default" size="100%">Proc1 13th Int1 Conf1 on Very Large Databases VLDB'87</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1987</style></year></dates><publisher><style face="normal" font="default" size="100%">VLDB Endowment Press, Saratog1 (CA)</style></publisher><pages><style face="normal" font="default" size="100%">107-116</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">no</style></abstract><label><style face="normal" font="default" size="100%">SSE87</style></label></record></records></xml>