Albizu Urionabarrenetxea, P. M., Tolosana Esteban, E., Ulecia Zaldívar, J. and Fernández Carretero, M. (2010) “Diagnosis of safety in forest harvesting operations from company records, official databases and land surveys. Improvement action plan”, Forest Systems, 19(2), pp. 221-233. doi: 10.5424/fs/2010192-01316.