Best birthday wishes to the player who taught us all to push rook pawns and who never let us forget that Nimzowitsch was Danish, too.
Skakbladet (in Danish, but lots of great photos)
And here's Flohr-Larsen, Copenhagen 1966.
P.S. If you know Weiss from Schwartz, you might enjoy Larsen's collection of his games through 1973.