Heinrich Gerber (Spanish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Heinrich Gerber" in Spanish language version.

refsWebsite

Global rank Spanish rank

3^rd place

7^th place

books.google.com

Daniel Coit Gilman, Frank Moore Colby, Harry Thurston Peck (1905). The new international encyclopaedia, Volume 8. Dodd, Mead, & Company. p. 597.
Journal of the Western Society of Engineers, Volumes 43-45. Western Society of Engineers. 1938. p. 260.
Ralf Roth, Marie-Noëlle Polino (2003). The City and the Railway in Europe. Ashgate Publishing. p. 88. ISBN 0754607666.