simulation of the operation of a log landing for a Heli-stat airship in old-growth timber
By: by John C. Gerstkemper.
Published: 1982
Language: eng
Number of pages: 71
Subjects: Logging, Aerial -- Mathematical models.
Notes: Typescript (photocopy).

"A paper submitted to Oregon State University in partial fulfillment of the requirements for the degree of Master of Forestry, 1982."

Bibliography: leaves 67-68.