Maryland, Eastern Shore) 霜堡州立大学(英语:Frostburg State University) 索尔兹伯里州立大學(英语:Salisbury State University) 陶森大學 马里兰大学全球分校 University of MarylandCenter for
Institute of Standards and Technology,Gaithersburg, Maryland W. M. Keck Vanderbilt Free-electron Laser Center,范德堡大学,Nashville, Tennessee Australian Synchrotron
(页面存档备份,存于互联网档案馆) at Naval Historical Center 1925 eclipse footage shot from ship "Queen of Dirigibles Ready for U.S." May 1924, Popular Science Monthly – excellent drawing
Cometography web site (extensive history and images)(页面存档备份,存于互联网档案馆) Cometary ScienceCenter webpage for comet 103P(页面存档备份,存于互联网档案馆) Secular Light Curve of Comet
Laboratory(英语:Henry A. Wallace Beltsville Agricultural Research Center), Beltsville, Maryland. [13 February 2014]. (原始内容存档于2015-09-24). Sousa-Sánchez M,