... S21Department of Forest and Soil Sciences, Institute of Forest Engineering, University of Natural Resources and Applied Life Sciences, Vienna, Austria2Department of Forest Engineering, ... Science, 24: 209–217.PICMAN D., PENTEK T., 1998. e influence of forest roads building and maintenance costs on their optimum density in low lying forests of Croatia. In: Seminar on Environmen-tally ... Natural Resources and Applied Life Sciences, Institute of Forest Engineering, Department of Forest and Soil Sciences, Peter-Jordan Strasse 82/3, A-1190 Vienna, Austriatel.: + 43 147 654 43 06,...