00416pab a2200145 454500008004000000100002400040245008700064260000900151300001600160362000800176650002200184700002100206700002500227773001800252180718b2009   xxu||||| |||| 00| 0 eng d  aCladera, Josep Roca  aUrban structure and polycentrism: towards a redefinition of the sub-centre concept  c2009  ap.2841-868.  aDec  aUrban development  aMoix, Monsterrat  aMarmolejo, Carlos R.  aUrban Studies