How about in english...? Any idea Roy....?
they don't exist in English language.
However, I can warmly recommend you to join the UK Matra Club, and ask for some back.-issues of the magazine, as there have been many technical articles published there in English (many of them by Roy, incidentally :-) )
Considering the small size of the club, the magazine is of very high standard - so much that it won the prize for best small club magazine in Classic Car some years back (and it has only been getting better since)
In case you're interested, the Matra Enthusiasts Club/UK's contact details can be found here:
http://www.matrasport.dk/pointers.html#clubs/Lennart