[Economic evaluation of the effectiveness of improving working conditions in the lumbering industry].
D004467:Economics; D004526:Efficiency; D005069:Evaluation Studies as Topic; D007221:Industry; D008433:Mathematics; D009787:Occupational Medicine; D014586:USSR; D014934:Wood; D014937:Work
Ekonomicheskaia otsenka éffektivnosti uluchsheniia usloviĭ truda v lesozagotovitel'nom proizodstve