Joseph Helffrich (Italian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Joseph Helffrich" in Italian language version.

refsWebsite

Global rank Italian rank

low place

5,123^rd place

1,681^st place

1,835^th place

3,354^th place

5,208^th place

google.pt

Lutz D. Schmadel, Dictionary of minor planet names (pagina 186), su books.google.pt. URL consultato il 24-10-2010.