Zendian problem (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Zendian problem" in English language version.

refsWebsite

Global rank English rank

1karlheinz-everts.de

low place

low place

7,043^rd place

4,687^th place

karlheinz-everts.de (Global: low place; English: low place)

"Problem of Zendia – Messages". Karl Heinz-Everts. 2009. Retrieved 2015-08-07.

nsa.gov (Global: 7,043^rd place; English: 4,687^th place)

"Lambros D. Callimahos, 1910–1977 (NSA Hall of Honor)". National Security Agency. 2003. Retrieved 2009-11-03.