Actions of the Homeotopy Group of an Orientable 3-Dimensional Handle Body. E. Luft — 1978 Mathematische Annalen
Enquivariant Surgery on Incompressible Tori and Klein Bottles in 3-Manifolds with Respect to Involutions. E. Luft — 1985 Mathematische Annalen
Equivariant surgery on essential annuli and Moebius bands in 3-manifolds with respect to involutions E. Luft — 1988 Fundamenta Mathematicae