Analysis of information sources in references of the Wikipedia article "Μετρό Παρισιού" in Greek language version.
|consulté le= ignored (|access-date= suggested) (βοήθεια); Unknown parameter |auteur= ignored (|author= suggested) (βοήθεια); Unknown parameter |titre= ignored (|title= suggested) (βοήθεια); Missing or empty |title= (βοήθεια).