title: Boundaries From Borders: Cross-Border Relationships in the Context of the Mental Perception of a Borderline – Experiences from Spanish-French and Polish-German Border Twin Towns
abstract: Abstract In this paper, the borderlands, in the context of the psychological perception of frontiers, were presented. The common relationships between different nationalities living in border twin towns was a principal point of analysis. During the investigation two main research questions were asked: Is a frontier a barrier or a bridge in the common relationships between nationalities living on both sides of the borderline? and Does the trans-border casual social integration stimulate openness 
journal: Quaestiones Geographicae