00395nam a2200169Ia 4500008004100000082001000041082000800051100002000059245005000079260004200129260000900171300001000180365000600190365000600196365000600202650001700208181031s9999    xx            000 0 und d  a711.1  bSEV  aSvedinger Bjorn  aTechnical infrastructure of urban communities  bSwedish Council for Building Research  c1991  a132p.  b0  d0  e0  aUrban Theory