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astrophysics data system

links for 1972AJ.....77...65H

Part 1: 1972AJ.....77...41H

Part 2: 1972AJ.....77...60B

adshelp[at]cfa.harvard.edu

The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement 80NSSC21M0056

*The material contained in this document is based upon work supported by a National Aeronautics and Space Administration (NASA) grant or cooperative agreement. Any opinions, findings, conclusions or recommendations expressed in this material are those of the author and do not necessarily reflect the views of NASA.

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