Lenz, Elmar (2004). "Networked Transport of RTCM via Internet Protocol (NTRIP) – Application and Benefit in Modern Surveying Systems" (PDF). FIG Working Week 2004. https://www.fig.net/resources/proceedings/fig_proceedings/athens/papers/ts03/ts03_2_lenz.pdf
"about NTRIP". Retrieved 17 January 2012. http://igs.bkg.bund.de/ntrip/about
BKG https://web.archive.org/web/20160329165844/http://www.bkg.bund.de/EN/Home/homepage__node.html__nnn=true
Uni Dortmund http://www.cs.uni-dortmund.de/nps/en/Home/index.html
"RTCM Recommended Standards for Networked Transport of RTCM via Internet Protocol (Ntrip), Version 1.0" http://igs.bkg.bund.de/root_ftp/NTRIP/documentation/NtripPressRelease.pdf
Version 2.0 with Amendment 1, June 28, 2011 https://web.archive.org/web/20160304071708/https://ssl29.pair.com/dmarkle/puborder.php?show=3
The "public version" of the protocol is missing all protocol details and examples, and refers to purchase the document from RTCM; it can be downloaded from BKG. http://igs.bkg.bund.de/root_ftp/NTRIP/documentation/NtripDocumentation.pdf