@article{MM2_1977__23_154516,
     author = {Peter L\"offler},
     title = {Equivariant {Framability} of {Involutions} on {Homotopy} {Spheres.}},
     journal = {Manuscripta mathematica},
     pages = {161--172},
     publisher = {mathdoc},
     volume = {23},
     year = {1977},
     zbl = {0367.57009},
     url = {http://geodesic.mathdoc.fr/item/MM2_1977__23_154516/}
}