@article{10_2140_agt_2005_5_899,
     author = {Beyl, F Rudolf and Waller, Nancy},
     title = {A stably free nonfree module and its relevance for homotopy classification, case {Q28}},
     journal = {Algebraic and Geometric Topology},
     pages = {899--910},
     year = {2005},
     volume = {5},
     number = {3},
     doi = {10.2140/agt.2005.5.899},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2005.5.899/}
}