Error message

  • Notice: Undefined variable: _SESSION in dial_widget_pr_publication_action() (line 140 of /var/www/html/drupal-7.54/sites/all/modules/dial/dial_widget/dial_widget_pr/dial_widget_pr.module).
  • Warning: array_key_exists() expects parameter 2 to be array, null given in dial_widget_pr_publication_action() (line 140 of /var/www/html/drupal-7.54/sites/all/modules/dial/dial_widget/dial_widget_pr/dial_widget_pr.module).

Database Evolution - the DB-MAIN Approach

Bibliographic reference Hainaut, Jean-Luc ; Englebert, Vincent ; Henrard, Jean ; Hick, Jean-Marc ; Roland, Didier. Database Evolution - the DB-MAIN Approach.In: Proc. of the 13th Int. Conf. on ER Approach, vol. 881, p. 112-131 (1989)
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