Informatie en plaatjes van Amazon.

1. Better Bidding with Bergen Vol I, Uncontested Auctions (1997)

   Edgar Kaplan, Marty Bergen

   Baron Barclay Bridge Supplies ISBN:9780910791366
2. Better Bidding with Bergen: Competitive Bidding, Fit Bids and More (1986)

   Marty Bergen

   Max Hardy Pub ISBN:9780910791786
3. 0720715253?tag=splitbrain-20
4. 0720714117?tag=splitbrain-20
5. 0940257173?tag=splitbrain-20
6. 0963753312?tag=splitbrain-20
7. 0939460076?tag=splitbrain-20
8. 0939460351?tag=splitbrain-20
9. 0571164323?tag=splitbrain-20
10. 9010045382?tag=splitbrain-20 Het moderne Acol boek
11. 9074950094?tag=splitbrain-20 Bieden met Berry deel III: conventies en gadgets

Remco Brüggeman en Henk Willemsens Bruwil

Paul Felten
Nieuw Amstelveens
Conventional Acol with many gadgets alla Garozzo
1981

Michael Granovetter New age opening leads