Conventions ...

3 way Drury

Ace asking 4NT & 5M

Bato

Bergen

Confit

DOPI

Gazzilli

Gladiator

Jacoby 2NT

Leaping Michaels

Lightner double

Lebensohl

Multi Landy

Nebulous 2♣

Negative redouble

Responsive double

RKCB

Pdbl and Sdbl

Romex

Rubensohl

Splinters

Support dbl/rdbl

Texas (SA)

Thrump double

Trap pass

Trial bids

Unserious 3NT

Mohan

after (1NT) - pass - (2x) - dbl - 

dbl over natural    =    13+, T/O, subsequent doubles are for penalty

dbl over artificialal    =    15+, system on

other    =    natural

back to (1NT) - dbl -