Read the Socionics Library.

I just found the Socionics library. There is quite a bit of research that hasn't been translated into English. If you are serious about learning this subject then you might want to read some of the articles. Attached below is a link to the function relationships.

http://library.socionic.info/Model-A?lang=ru

http://library.socionic.info/vnutren...heniya?lang=ru