I need to make sure the paper is balanced, discussing both the availability of information and the potential issues with copyright infringement. Also, mention alternatives like public domain, library systems, or legal digital stores. I should fact-check to confirm if Pflieger's works are indeed available via torrents, as well as their status in terms of copyright. If he passed away, the copyright might expire after 70 years in France. His birth year is 1942, so assuming he's alive, his works are likely still under copyright.