%0 Journal Article %T Impact of incomplete information about unit to choose period of diagnosis and operational efficiency at condition-based maintenance %A Shevchenko, S.. %K forestry machine, failure, pitting, condition-based maintenance, diagnosis period, optimization. %J Actual directions of scientific researches of the XXI century: theory and practice %D 2015 %N 3 %P 5 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov