@MISC{TOPREAL4.MIZ,
  AUTHOR = {Nakamura, Yatsuka and Kotowicz, Jaros{\l}aw},
  TITLE = {Connectedness Conditions Using Polygonal Arcs},
  DAY = {24},
  MONTH = {August},
  YEAR = {1992},
  ADDRESS1 = {Shinshu University\\Nagano},
  ADDRESS2 = {Warsaw University\\Bia{\l}ystok},
  SUMMARY = {A concept of special polygonal arc joining two different points
is defined. Any two points in a ball
can be connected by this kind of arc, and that is also true for any region in
 ${\cal E}^2_{\rm T}$.}}

