1. NETWORKING AND COOPERATION OF SMALL AND MEDIUM SIZED FIRMS IN CROSS - BORDER REGIONS. Authors: ELEKTRA PITOSKA.2. THE ROLE OF EURO BALKAN ECONOMIC COLLABORATION IN THE LOCAL DEVELOPMENT OF FRONTIER REGIONS:DOUBTS AND DELAYS IN THE PREFECTURE OF FLORINA. Authors: ELEKTRA PITOSKA.3. NETWORKING OF SMALL AND MEDIUM SIZED ENTERPRISES IN THE COUNTRYSIDE AND LOCAL DEVELOPMENT: THE CASE OF AGRICULTURAL COOPERATIVE OF EPISKOPI, GREECE. Authors: ELEKTRA PITOSKA.