DD,   DD*,   D*D*,   DsDs,   DsDs*,   Ds*Ds* coupled P-wave scattering resonances Charmonium central resonance positions   = 0 --> confinement states (S and D)   = 1 --> model's charmonium spectrum   Nucl. Phys. B (Proc. Suppl.) 21, 43 (1991)