Moto Club Puma Cordoba
Considerable information on Argentinian marques.
An alphabetical index of motorcycles built in Argentina.
Sergio, who hails from Argentina, has contributed numerous articles on rare and interesting machines. He tends to react with some embarrassment if referred to as an historian, so let's just say he's an ardent and thorough multilingual researcher.
Robert is an ardent motorcycle enthusiast and historian who created a site on Puma, now archived here.