Neiswender, C. 2011. "What is a Tool?." In The MMI Guides: Navigating the World of Marine Metadata. http://marinemetadata.org/guides/technicaltools/whatistool_spammed. Accessed December 6, 2019.
The NetCDF Classic and 64-bit Offset File Formats Standard has been formally recognized by the NASA SPG. In addition, two efforts are underway to recognize the CF Conventions as a formal NASA standard.