@article{SemmoTrappKyprianidisetal.2012,
  author    = {Amir Semmo and Matthias Trapp and Jan Eric Kyprianidis and J{\"u}rgen Roland Friedrich D{\"o}llner},
  title     = {Interactive visualization of generalized virtual 3D city models using level-of-abstraction transitions},
  journal   = {Computer graphics forum : journal of the European Association for Computer Graphics},
  volume    = {31},
  number    = {3},
  pages     = {885 -- 894},
  doi       = {10.1111/j.1467-8659.2012.03081.x},
  year      = {2012},
}