On isomorphisms between fibrations over T k associated with a T k action Michał Sadowski (1991) Annales Polonici Mathematici
On the Classification Problem for H-Spaces of Rank Two. P.J. Hilton, J. Roitberg (1970) Commentarii mathematici Helvetici
On the embedding of coverings into 1-dimensional bundles. Knud Lonsted (1980) Journal für die reine und angewandte Mathematik
On the natural operators transforming vector fields to the r -th tensor power Kolář, Ivan (1993) Proceedings of the Winter School "Geometry and Topology"