@article{9168,
      author       = "Chang Kang - Tsung and University of North Dakota and 9.
                      mezinár. konf. kart., Rockville, Md. 1978",
      title        = "Factors influencing size judgment and theier imlications
                      for map design  ",
      year         = "1978",
      note         = "1 seš.",
}