As I just advised Thomas (see Fonck,Guynemer,Richthofen below)make a search on the WEB for "Google" the best search engine out there. Then search for "Nungesser". There's a ton of stuff available. If you have the patience, there must be a number of discussions buried in the Aerodrome archives under "People".I never really looked myself,but there must be a number of books out there too. More is known about Nungesser than the majority of WWI aces.
Welcome to the site.This place is full of genuine experts in the field who are most generous in sharing there knowledge.
What's the use of worrying? It never was worth while. So, pack up your troubles in your old kit bag and smile, smile, smile!