%0 Journal Article %T When Do Movements Matter? The Politics of Contingency and the Equal Rights Amendment %A Soule, Sarah A. %A Olzak, Susan %D 2004 %R 10.1177/000312240406900401 %P 473-497 %J American Sociological Review %V 69 %I 4 %2 ISSN: 0003-1224