@electronic{dev.mysql.com,
   title       = {MySQL :: MySQL 5.1 Referenzhandbuch :: 3.3.4.9 Mehr als eine Tabelle benutzen}, 
   url         = {http://dev.mysql.com/doc/refman/5.1/de/multiple-tables.html},
   biburl      = {https://puma.uni-kassel.de/url/ac4418674953230eea403222d0fd3a1c/stephandoerfel},
   keywords    = {MySQL documentation sql tutorial},
   added-at    = {2009-09-30T18:22:39.000+0200},
   description = {Ein deutsches MySQL Tutorial, für Einsteiger geeignet!},
   interhash   = {ac4418674953230eea403222d0fd3a1c}, 
   intrahash   = {ac4418674953230eea403222d0fd3a1c}
}