Hudson, E. C. Geometrical proof of spherical formulae and application to astronomy. (English) JFM 28.0458.01 Quart. J. 29, 202-205 (1898). Reviewer: Schubert, Prof. (Hamburg) PDFBibTeX XMLCite \textit{E. C. Hudson}, Quart. J. 29, 202--205 (1898; JFM 28.0458.01)
Hudson, E. C. On a little circle spherical triangle. (English) JFM 26.0583.01 Quart. J. XXVII, 378-386 (1894). Reviewer: Lange, Prof. (Berlin) PDFBibTeX XMLCite \textit{E. C. Hudson}, Quart. J. 27, 378--386 (1894; JFM 26.0583.01)
Hudson, E. C. On the expansion of a series. (English) JFM 22.0262.02 Quart. J. XXIV, 233-245 (1890). Reviewer: Weltzien, Dr. (Berlin) MSC: 41A58 PDFBibTeX XMLCite \textit{E. C. Hudson}, Quart. J. 24, 233--245 (1890; JFM 22.0262.02)