Pirofone (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Pirofone" in Portuguese language version.

refsWebsite

Global rank Portuguese rank

234^th place

190^th place

1books.google.com

3^rd place

6^th place

163^rd place

204^th place

books.google.com

(November 4, 1882). Scientific American: Supplement, Vol. 14, No. 357, p.5687. New York. Predefinição:Pre-ISBN.

google.com

G.E.F. Kastner, Improvement in Pyrophones, Patente E.U.A. 164 458, granted June 15, 1875

nature.com

"Frederic Kastner obituary", Nature Volume 26, 27 July 1882.