Akay, A.E., Acar, H.H., Sessions, J. 2008. An Analysis
of Utilizing Helicopter Logging in Turkish Forestry.
Journal of Applied Sciences. 8(21): 3910-3916.
Aust, M.W. and A. Lea, 1992. Comparative effects of
aerial and ground logging on soil properties in a
tupelo-cypress wetland. For. Ecol. Mgt.50:57-73.
BCTS, 2009. Operating Guidelines. Guidelines for
Helicopter Logging in Northwest British Columbia.
10 p.
Bruce B., 2003. Helicopter Logging’s Bumpy Ride.
Using helicopters to thin forests instead of fighting
fires. Journal of Logging & Sawmills. Timber West.
July-August 2003.
Chua D., 2001. Helicopter harvesting in the hill mixed
dipterocarp forests of Sarawak. Applying Reduced
Impact Logging to Advance Sustainable Forest
Management. International Conference Proceedings,
26 February-1 March 2001, Kuching, Malaysia.
Dunham, M. 2006. An Overview of Helicopter Logging
in British Columbia. 2006. Council on Forest
Engineering (COFE) Conference Proceedings:
“Working Globally – Sharing Forest Engineering
Challenges and Technologies Around the World”
July 22-Aug 2, Coeur d’Alene, Idaho, USA.
Hartsough, B.R., M.B. Lambert, and J.A. Miles, 1986.
Simulating changes to helicopter logging operations.
Transactions of the ASAE. 29(5):1228-1231.
Heinimann, H.R. and L. Caminada, 1996. Helicopter
logging in Switzerland, analysis of selective logging
operations. In: I.B. Hedin. [Ed.] Proc. of a Joint
Symp. of IUFRO 3.06 Forest Operations Under
Mountainous Conditions and the 9th Pacific
Northwest Skyline Symposium: Addressing Today´s
Social and Environmental Issues. May 13-16, 1996,
Campbell River, British Columbia. For. Eng. Res.
Inst. Can. Spec. Rep. SR-116: pp 45-50.
Hui, K. 2001. Helicopter harvesting in the hill mixed
dipterocarp forests of Sarawak. Applying Reduced
Impact Logging to Advance Sustainable Forest
Management. International Conference Proceedings,
26 February-1 March, Kuching, Malaysia.
Krag, R.K. and M. Clark, 1996. Helicopter logging in
clearcut, patch-cut, and single-tree selection
harvests: Queens Charlotte Islands, British
Columbia. In: J. Sessions [Ed.]. Proc. IUFRO XX
World Congress, Subject Group S3.06 "Forest
Operations Under Mountainous Conditions". Dept.
For. Eng., Oregon State University, Corvallis: pp.
54-72.
Sloan, H. and J. Sherar, 1997. Hurricane fran helicopter
salvage case study. Proceeding of the 20th Annual
Meeting of Council on Forest Engineering, July 28-
31, Rapid City, SD., pp: 107-113.
Sloan, H., J. Tollenaere, and Ch. Croff, 1994.
Technology advances in helilogging: A case study of
the K-MAX in Appalachian Hardwoods. In: J.
Sessions and L. Kellogg [Eds.] Proc. of the meeting
on "Advanced technology in forest operations:
applied ecology in action". Dept. of For. Eng.,
Oregon State University, Corvallis: pp. 237-246.
Stampfer, K., H. Gridling, R. Visser, 2002. Analyses of
Parameters Affecting Helicopter Timber Extraction.
IJFE, 13(2): 61-68.
URL-1. Logging Machines.
http://www.oregonloggers.org/Forest_Logging_Mac
hines.aspx (Last visited on 29-10-2016).
URL-2. Heli-logging: timber harvesting by helicopter.
http://www.waldwissen.net/technik/holzernte/arbeit/
wsl_helilogging/index_DE (Last visited on 29-10-
2016).
URL-3. Forest Operations Equipment Catalog:
Helicopter extraction.
https://www.forestsandrangelands.gov/catalog/equip
ment/helicopter.shtml (Last visited on 30-05-2016).
URL-4. Heli Logging.
http://eastwesthelicopters.com/helilogging.html
(Last visited on 29-10-2016).
URL-5. Helicopter Crash.
http://www.northcoastoregon.com/2013/09/19/4998/
(Last visited on 30-05-2016).
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