TY JOUR TI RESOURCE PROVISION FOR CONSTRUCTING THE LOGGING MOTOR ROAD IN THE UNCERTAIN PRICE CONDITIONS KW logging motor road KW road-building materials KW construction KW material supply JO Bulletin of KSAU AU Skvortsova, T.V. AU Skrypnikov, A.V. AU Kondrashova, E.V. PY 2012 IS PB Krasnoyarsk State Agrarian University