@article{10_4064_aa_75_3_251_258, author = {Christopher Skinner}, title = {Solvability of }, journal = {Acta Arithmetica}, pages = {251--258}, publisher = {mathdoc}, volume = {75}, number = {3}, year = {1996}, doi = {10.4064/aa-75-3-251-258}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-75-3-251-258/} }