PARTOV, Doncho; MAŚLAK, Mariusz; IVANOV, Radan; PETKOV, Milen; SERGEEV, Denislav; DIMITROVA, Antoaneta. <i>The development of wooden bridges through the ages – a review of selected examples of heritage objects. Part 2 – the iconic structures from the western slavdom area and those that inspired them</i>. 2016.