$VAR1 = {
          'Bin Laden' => {
                           'title' => 'Terrorism',
                           'author' => 'Bin Laden',
                           'keywords' => [
                                           'terrorism',
                                           'whatever'
                                         ],
                           'id' => '1',
                           'year' => '1990',
                           'source' => 'Cambridge University Press, Cambridge UK, 1st edition '
                         },
          'Sydney' => {
                        'title' => 'Terrorism',
                        'author' => 'Sydney',
                        'keywords' => [
                                        'nothing',
                                        'whatever'
                                      ],
                        'id' => '1',
                        'year' => '1990',
                        'source' => 'Cambridge University Press, Cambridge UK, 1st edition '
                      }
        };