A Classic Problem Concluded

Phillip Helbig

The Observatory, 134, 1240, 138–139 (June 2014)

M. Beech gave an interesting historical review of an intriguing question (The Observatory, 133, p. 311, No. 1237 (December 2013)), but it was missing the one reference I would have thought of first.

info and local links to full paper | ADS: 2014Obs...134..138H | Google Scholar
directory of Phillip Helbig's abstracts
Phillip Helbig's publications
Phillip Helbig's research
Phillip Helbig's home page
last modified on Sunday, October 20, 2019 at 06:13:58 PM by helbig@ascameltro.multivax.de (remove animal to reply)