1. J.S. BIRMAN, Orientation-reversing involutions on 3-manifolds, preprint, Columbia Univ., 1979.
2. F. BONAHON and L. SIEBENMANN, Equivariant characteristic varieties in dimension 3, (to appear).
3. [BoS2] F. BONAHON and L. SIEBENMANN, Les noeuds algébriques (à paraitre), see also proceedings of July 1979 topology conference, Bangor N. Wales, LMS lecture notes, to appear.
4. G. BREDON, Introduction to compact transformation groups, Academic Press, 1972.
5. A. CAUDRON, L'arborescence dans la classification des noeuds et des enlacements, polycopié ENSET Tunis 1979.