@article{MS2_1989__64_2_186112,
     author = {Ib Madsen and Melvin Rothenberg},
     title = {On the classification of {G-spheres} {II:} {PL} automorphism groups.},
     journal = {Mathematica Scandinavica},
     pages = {161--218},
     publisher = {mathdoc},
     volume = {64},
     number = {2},
     year = {1989},
     zbl = {0694.57023},
     url = {http://geodesic.mathdoc.fr/item/MS2_1989__64_2_186112/}
}