Secular variation of activity in comets 2P/Encke and 9P/Tempel 1
By: Michael Haken ... [et al.].
Contributors: Haken, Michael.; United States. National Aeronautics and Space Administration.
Series: [NASA contractor report] -- NASA CR-201783.
Publisher: National Aeronautics and Space Administration; National Technical Information Service, distributor
Published: 1997
Place of publication: [Washington, DC; Springfield, Va
Language: eng
Format: Microform
Notes: Shipping list no.: 98-0848-M.

Microfiche. [Washington, D.C. : National Aeronautics and Space Administration, 1997] 1 microfiche.