<The Finnish master adopts this move fairly often; indeed, two years ago here in Tallinn, he defeated L. Stein in this variation. Looking through some chess magazines literally half an hour before the start of the game, I came across the game Westerinen-Kaplan, Skopje 1972, which White had lost in 20 moves, and without checking any further I decided to follow the Puerto-Rican.>

Page 452 of Tal, Mikhail: "The Life and Games of Mikhail Tal", London 1997

Here is the Wsterinen-Kaplan game:

[Event "Skopje ol (Men) fin-C"]
[Site "Skopje MKD"]
[White "Westerinen, Heikki M J"]
[Black "Kaplan, Julio P"]
[WhiteElo "2450"]
[BlackElo "2470"]
[Date "1972.10.01"]
[Result "0-1"]
[Round "5"]
[ECO "B40"]

<...Looking through some chess magazines literally half an hour before the start of the game, I came across the game Westerinen-Kaplan, Skopje 1972, which White had lost in 20 moves, and without checking any further I decided to follow the Puerto-Rican.>