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).

How to design user-friendly CALL interfaces

Bibliographic reference Lonfils, Colin ; Vanparys, Johan. How to design user-friendly CALL interfaces. In: Computer-assisted language learning, vol. 14, no. 5, p. 405-417 (2001)
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