Literature Cited
- American Pulpwood Association (APA) . 1972 . Standard definitions for machine availability and utilization , Tech. Release Vol. 71-R-13 , 5 Washington, DC : APA .
- American Pulpwood Association (APA) . 1981 . Machine time, utilization, maintenance, and cost-terms and concepts , Tech. Release Vol. 81-R-42 , 5 Washington, DC : APA .
- Appelroth , S.E. 1985 . The analysis and interpretation of forest work study results , Helsinki : The Finnish Forest Research Institute .
- Bergstrand , K.G. 1991 . Planning and analysis of forestry operation studies , Skogsarbeten Bulletin Vol. 17 , 63
- Berti , S. , Piegai , F. and Verani , S. 1989 . Manuale d’istruzione per il rilievo dei tempi di lavoro e delle produttività nei lavori forestali (Instruction manual on collecting time consumption and productivity data in forest works) , Vol. IV , 43 Institute for Forest Management and Technology. Univ. of Florence . Paper of the
- Björheden , R. , Apel , K. , Shiba , M. and Thompson , M.A. 1995 . IUFRO Forest work study nomenclature , 16 Garpenberg : Swedish Univ. of Agricultural Science, Dept. of Operational Efficiency .
- Brinker , R.W. , Miller , D. , Stokes , B.J. and Lanford , B.L. 1989 . Machine rates for selected forest harvesting machines , Circular Vol. 296 , 24 Alabama Agric. Exp. Station, Auburn Univ .
- Conway , S. 1982 . Logging Practices: Principles of Timber Harvesting Systems , 416 San Francisco , CA : Miller Freeman Publications . (rev. ed.)
- CTBA . 1997 . Final Report: European Concerted Action Program AIR3–CT94–2097: Harmonization of ongoing research in the field of forestry exploitation and optimization in relation with environmental and economic constraints www.ctba.fr/stodafor/documents
- Husky Computers, Ltd . 1991 . Husky Hunter 16 User’s Guide 444 Aldwick, Bognor Regis , , United Kingdom
- Kofman , P. 1995 . Siwork 3: User’s Guide , 37 Vejle , , Denmark : Danish Forest and Landscape Research Institute .
- Landau , K. 1998 . REFA – Fachausschuss Fortswirtschaft Arbeits-studien, Arbeitorganisation und Qualitatsmanagement in der Forstwirtschaft , 175 Stuttgart : IFAO .
- LeDoux , C.B. and Huyler , N.K. 2000 . Cost comparison for three harvesting systems operating in northern hardwood stands , Res. Paper NE-715 4 Newtown Square , PA : USDA, Forest Service, Northeastern Res. Station .
- McGraw , W.E. and Hallett , R.M. 1970 . Studies on the productivity of skidding tractors , Canadian Forestry Service Publication Vol. 1282 , Ottawa : Dept. of Fisheries and Forestry, The Queens Press .
- Miyata , E.S. and Steinhilb , H.M. 1980 . Logging system cost analyses , USDA North Central Experimental Station Res. Paper Vol. NC-208 , 18
- Olsen , E. , Hossain , M. and Miller , M. 1998 . Statistical comparison of methods used in harvesting work studies , Res. Contribution Vol. 23 , 31 Corvallis , OR : Oregon State Univ., Forest Research Lab .
- Samset , I. 1990 . Some observations on time and performance studies in forestry , 80 Communications ofthe Norwegian Forest Research Institute . No. 43, 5
- Stampfer , K. and Steinmueller , T. 2001 . “ A new approach to derive a productivity model for the Harvester Valmet 911 Snake ” . In Proc. of the International Mountain Logging and 11th Pacific Northwest Skyline Symp 254 – 262 . In:
- Steinlin , H. 1955 . Zur methodik von feldversuchen im haungsbetrieb . Mitt. Schweiz. Anst. Forstl. VerWes. , 31 : 249 – 320 .
- Stokes , J.B. , Ashmore , C. , Rawlins , C.L. and Sirois , D.L. 1989 . Glossary of terms used in timber harvesting and forest engineering , Gen. Tech. Rep. SO-73 33 New Orleans , LA : USDA Forest Service, Southern Experiment Station .
- Visser , R. and Stampfer , K. 2003 . Tree-length system evaluation of second thinning in loblolly pine plantations . South. J. Appl. For. , 27 ( 2 ) : 77 – 82 .