1. R. Chauvin, Paper I of this series, J. Math. Chem. 16 (1994) 245.
2. R. Chauvin, J. Phys. Chem. 96 (1992) 4701.
3. R. Chauvin, J. Phys. Chem. 96 (1992) 4706.
4. R. Chauvin, Paper II of this series, J. Math. Chem. 16 (1994) 257.
5. M. Pavel,Fundamentals of Pattern Recognition M. Decker Ed., 1989).