Looking for the complete game Sibilio-Mariotti, Ravenna 1982 Tim Krabbe shows this game on his record site.

[Title "Sibilio-Mariotti, Ravenna 1982"]
[FEN "5k2/1p4pp/4p3/3pP1q1/3P4/7K/7P/8 w - - 0 1"]


The game has a stalemate after only 27 moves. I would like to know the complete game. I did not find in chessgames.com, chess365, or my database. Does anybody know the full game?
All games from Tim Krabbe's website are available in the little player on the right side of the page (there is a chessboard, game navigation bar and a box from which the games can be chosen).
For the sake of the question and since it is quite an entertaining game, though:

[White "Sibilio"]
[Black "Mariotti"]
[Event "Ravenna 1982"]
[fen "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]

1. e4 e6 2. Nf3 d5 3. e5 c5 4. b4 cxb4 5. d4 Nh6 6. a3 bxa3 7. c3 Nf5 8. Nxa3 Nc6 9. Nb5 a6 10. g4 Bd7 11. Bg5 Be7 12. gxf5 axb5 13. fxe6 fxe6 14. Rxa8 Qxa8 15. Rg1 Qa3 16. Bxb5 Bxg5 17. Rxg5 Qxc3+ 18. Kf1 O-O 19. Bxc6 Bxc6 20. Kg2 Ba4 21. Qe2 Bc2 22. Ne1 Bxe4+ 23. f3 Rxf3 24. Nxf3 Bxf3 25. Qxf3 Qd2+ 26. Kh3 Qxg5 27. Qf8+ Kxf8 1/2-1/2