1. The COST model for calculation of forest operations costs;Ackerman;Int. J. For. Eng.,2014
2. A structural assessment of the contract logging sector in the Inland Northwest;Allen;For. Prod. J.,2008
3. Logging firm succession and retention;Allred;For. Prod. J.,2009
4. Changes in Georgia's logging workforce, 1987–2007;Baker;South. J. Appl. For.,2008
5. Preparing for expansion in the logging workforce: results from a survey of logging contractors in a region expecting rapid growth in woody biomass utilization;Barrett,2013