Donald Machholz (French Wikipedia)
Analysis of information sources in references of the Wikipedia article "Donald Machholz" in French language version.
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astronomy.com
- (en) Jake Parks, « Donald Machholz, comet hunter and co-inventor of Messier marathon, dies at age 69 », sur astronomy.com, .
cometography.com
- (en) « 96P/Machholz 1 », sur cometography.com.
science.org
- (en) Daniel W. E. Green, Hans Rickman, Alan C. Porter et Karen J. Meech, « The Strange Periodic Comet Machholz », Science, vol. 247, no 4946, , p. 1063-1067 (lire en ligne
).
universemagazine.com
- (en) « Famous amateur astronomer Donald Machholz died », sur universemagazine.com, .