Johannes Herman Frederik Umbgrove (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Johannes Herman Frederik Umbgrove" in English language version.

refsWebsite

Global rank English rank

1web.archive.org

1^st place

1^st place

2,678^th place

2,423^rd place

knaw.nl

dwc.knaw.nl

"Johannes Herman Frederik Umbgrove (1899 - 1954)". Royal Netherlands Academy of Arts and Sciences. Archived from the original on 22 August 2020.

web.archive.org

"Johannes Herman Frederik Umbgrove (1899 - 1954)". Royal Netherlands Academy of Arts and Sciences. Archived from the original on 22 August 2020.