"South" . . "North" . . . . . . . "European route E 661 is a part of the inter-European road system. This Class B north-south route is 449 kilometres (279 mi) long and it connects Lake Balaton in Hungary via western Slavonia in Croatia with Bosanska Krajina and central Bosnia."@en . "E" . "447000.0"^^ . "661" . . . . . . . .