Jordan Curve Theorems with Respect to Certain Pretopologies on \mathbb Z2\mathbb Z^2.

Josef Slapal Jordan Curve Theorems with Respect to Certain Pretopologies on \mathbb Z2\mathbb Z^2. 252-262 2009 DGCI http://dx.doi.org/10.1007/978-3-642-04397-0_22 conf/dgci/2009 db/conf/dgci/dgci2009.html#Slapal09