SARAJEVO (Bosnia and Herzegovina), February 13 (SeeNews) -Â A consortium comprising two Bosnian companies, Prijedorputevi and Kozaraputevi, has launched the construction of a 3.4 million marka ($1.9 million/1.7 million euro)Â bridge in Banja Luka, the main city of Bosnia's Serb Republic, the city authorities said.Â