00336pab a2200133 454500008004000000100002000040245003600060260000900096300001400105362000800119650002100127700002100148773003300169180718b2001   xxu||||| |||| 00| 0 eng d  aOlak, Susan and  aThe ecology of tactical overlap  c2001  ap.694-717  aOct  aSocial movements  aUhrig, S.C. Noah  aAmerican Sociological Review