There is a great tribute to Korchnoi on Chess Diagonals, but as far as I know there no tribute to Lengyel on the Internet. However, you can read about him HERE.
The standings were:
2-3) Lengyel and Honfi 9.0
4-5) Csom and Haag 8.5
6-7) Flesch and Kolarov
8-10) Kluger, Borisenko and Gasztnyi
11) Florian 6.5
12-14) Pirc, Sliwa and Gunsberger
Here’s his game against Lengyel who’s solid play never gave Korchnoi a chance at winning. In fact, I did not even find a point where he could have safely complicated things in order to create winning chances.