@article{JTNB_2010__22_3_583_0, author = {Pete L. Clark}, title = {The period-index problem in {WC-groups} {IV:} a local transition theorem}, journal = {Journal de Th\'eorie des Nombres de Bordeaux}, pages = {583--606}, publisher = {Universit\'e Bordeaux 1}, volume = {22}, number = {3}, year = {2010}, doi = {10.5802/jtnb.734}, zbl = {1258.11094}, mrnumber = {2769333}, language = {en}, url = {https://jtnb.centre-mersenne.org/articles/10.5802/jtnb.734/} }