Aleksandar Matanović

Aleksandar Matanović (; 23 May 1930 – 9 August 2023) was a Serbian chess grandmaster, one of the leading Yugoslav players in the 1950s-1970s. In 1966 he founded the company Chess Informant, which publishes regular game collections from recent major tournaments and the ''Encyclopaedia of Chess Openings''. Provided by Wikipedia