#### Volume 3, issue 2 (2003)

 1 P M Akhmetiev, R R Sadykov, A remark on elimination of singularities for mappings of 4–manifolds into 3–manifolds, Topology Appl. 131 (2003) 51 MR1982814 2 Y Ando, On the elimination of Morin singularities, J. Math. Soc. Japan 37 (1985) 471 MR792988 3 V I Arnol’d, V A Vasil’ev, V V Goryunov, O V Lyashenko, Dynamical systems VI: Singularities, local and global theory, Encyclopaedia of Mathematical Sciences 6, Springer (1993) MR1230637 4 J M Boardman, Singularities of differentiable maps, Inst. Hautes Études Sci. Publ. Math. (1967) 21 MR0231390 5 D S Chess, A note on the classes $[S^{k}_{1}(f)]$, from: "Singularities, Part 1 (Arcata, Calif., 1981)", Proc. Sympos. Pure Math. 40, Amer. Math. Soc. (1983) 221 MR713061 6 Y Eliashberg, Surgery of singularities of smooth mappings, Izv. Akad. Nauk SSSR Ser. Mat. 36 (1972) 1321 MR0339261 7 S Kikuchi, O Saeki, Remarks on the topology of folds, Proc. Amer. Math. Soc. 123 (1995) 905 MR1283556 8 F Ronga, Le calcul des classes duales aux singularités de Boardman d'ordre deux, Comment. Math. Helv. 47 (1972) 15 MR0309129 9 O Saeki, Notes on the topology of folds, J. Math. Soc. Japan 44 (1992) 551 MR1167382 10 O Saeki, K Sakuma, Maps with only Morin singularities and the Hopf invariant one problem, Math. Proc. Cambridge Philos. Soc. 124 (1998) 501 MR1636580 11 O Saeki, K Sakuma, Elimination of singularities: Thom polynomials and beyond, from: "Singularity theory (Liverpool, 1996)", London Math. Soc. Lecture Note Ser. 263, Cambridge Univ. Press (1999) 291 MR1709359 12 K Sakuma, A note on nonremovable cusp singularities, Hiroshima Math. J. 31 (2001) 461 MR1870989