@article{XinHijaziKoenigetal.2016,
  author    = {Li Xin and Ihab Hamzi Hijazi and Reinhard K{\"o}nig and Zhihan Lv and Chen Zhong and Gerhard Schmitt},
  title     = {Assessing Essential Qualities of Urban Space with Emotional and Visual Data Based on GIS Technique},
  journal   = {ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION},
  doi       = {10.3390/ijgi5110218},
  year      = {2016},
}