Hello,
You should try "la maison du livre d'aviation", 75 Boulevard Malesherbes, 75008 Paris, they have a website :
http://www.livre-aviation.com/
Concerning Docavia Series, you could try the publisher, Edition Larivière
http://boutique.editions-lariviere.f...ation-6-5.html
If you need to call them and if your French is as "good" as my English, please let me know via PM.
Best regards.
Eric