JOURNAL OF MATHEMATICAL PHYSICS, cilt.39, sa.4, ss.2103-2111, 1998 (SCI-Expanded)
We give the conditions for a system of N-coupled Korteweg de Vries (KdV) type of equations to be integrable. We fmd the recursion operators of each subclass and give all examples for N=2. (C) 1998 American institute of Physics. [S0022-2488(98)03003-5].