1. Theory of random matrices in mesoscopic quantum physics, P. Mello, Les Houches 1994, E. Akkermans, G. Montambaux, J.-L. Pichard, J. Zinn-Justin (Eds.), North-Holland, 1995; I. Kostov Nucl. Phys. B (Proc. Suppl.) 10A (1989) 295.
2. Planar diagrams
3. Some generalized order-disorder transformations
4. V.A. Kazakov, Modern Phys. Lett. A 4 (1989) 1691; Nucl. Phys. B (Proc. Suppl.) 4 (1998) 93.
5. J.M. Daul hep-th/9502014.