@article{10_2140_agt_2010_10_2079, author = {Shimomura, Katsumi}, title = {The beta elements \ensuremath{\beta}tp2\ensuremath{/}r in the homotopy of spheres}, journal = {Algebraic and Geometric Topology}, pages = {2079--2090}, year = {2010}, volume = {10}, number = {4}, doi = {10.2140/agt.2010.10.2079}, url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2010.10.2079/} }