1. Topologie dreidimensionaler Gefaserter Räume;Seifert;Acta Math.,1933
2. Classification of the actions of the circle on 3-manifolds;Raymond;Trans. Amer. Math. Soc.,1968
3. Actions of SO(2) on 3-manifolds;Orlik,1968
4. Lectures on Seifert Manifolds;Jankins,1983
5. The cohomology ring of a class of Seifert manifolds;Bryden;Topology Appl.,2000