http://hfst.github.io/
https://github.com/hfst/hfst

https://hfst.github.io/downloads/index.html

http://hfst.sourceforge.net/hfst3/

papers:
https://helda.helsinki.fi//bitstream/handle/10138/42166/HFST_a_System_for_Creating_NLP_Tools.pdf

api:
https://hfst.github.io/cplusplus/index.html

wiki:
https://en.wikipedia.org/wiki/HFST
https://kitwiki.csc.fi/twiki/bin/view/KitWiki/HfstHome
http://wiki.apertium.org/wiki/Hfst
http://wiki.apertium.org/wiki/Starting_a_new_language_with_HFST

integr
http://hfst.sourceforge.net/hfst3/HfstWithSFSTOpenFstAndFoma.html

http://apertium.projectjj.com/win64/release/
http://apertium.projectjj.com/win64/nightly/