@Article{HP,
  Title                    = {Drift-or Fluctuation-Induced Ordering and Sef-Organization in Driven Many Particle Systems},
  Author                   = {Helbing, D.~ and Platkowski, T.~},
  Journal                  = {EuroPhys.~Letters},
  Year                     = {2002},
  Pages                    = {227--233},
  Volume                   = {60},
  Bdsk-url-1               = {http://ccm.uma.pt/publications/epl_60_2_227.pdf},
  Ccm-nr                   = {52/02},
  Date-added               = {2008-11-01 12:19:48 +0000},
  Date-modified            = {2008-11-01 12:19:48 +0000},
  Url                      = {http://ccm.uma.pt/publications/epl_60_2_227.pdf}
}