Bronnen

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. Acol in Competition (1984)

   Eric Crowhurst

   Michael Joseph ISBN:9780720715255
4. The Complete Book on Overcalls in Contract Bridge (1979)

   Michael Lawrence, Mike Lawrence

   ISBN:9780720714111
5. A Switch in Time: How to Take All Your Tricks on Defense (2012)

   Matthew Granovetter

   ISBN:9780940257177
6. The Complete Book on Takeout Doubles (1994)

   Mike Lawrence, Michael Lawrence

   ISBN:9780963753311
7. The Complete Book on Overcalls in Contract Bridge (2006)

   Mike Lawrence

   Baron Barclay Bridge Supplies ISBN:9780939460076
8. Mike Lawrence's Workbook on the Two Over One System (2006)

   Mike Lawrence

   Devyn Press ISBN:9780939460359
9. Partnership Bidding: The Contested Auction (1993)

   Andrew Robson, Oliver Segal

   ISBN:9780571164325
10. Het moderne Acol boek (1983)

    Cees Sint, Ton Schipperheyn

    ISBN:9789010045386
11. Bieden met Berry deel III: conventies en gadgets
    Berry Westra
    ISBN: 9789074950091

Remco Brüggeman en Henk Willemsens Bruwil

Paul Felten
Nieuw Amstelveens
Conventional Acol with many gadgets alla Garozzo

Michael Granovetter New age opening leads