The usage of Z WITH STROKE

Hi!

There are two comments to the character(s) in the U0180 chart:

1. Pan-Turkic Latin orthography
2. handwritten variant of Latin “z”

Ad 1.

Do I understand correctly that the Pan-Turkic Latin ortography
refers to the initiative described in the post to the Linguist list:

https://linguistlist.org/issues/4/4-187.html

If so, where to find more information about it? I found already another
post to the Linguist list

https://linguistlist.org/issues/5/5-739.html

but it contains only very general information.

Ad 2.

I'm curious how widespread, in time and space, is/was this
convention. Can you suggest to me where to search for this information?

Best regards

Janusz

-- 
                           ,   
Prof. dr hab. Janusz S. Bien -  Uniwersytet Warszawski (Katedra Lingwistyki Formalnej)
Prof. Janusz S. Bien - University of Warsaw (Formal Linguistics Department)
jsbien@uw.edu.pl, jsbien@mimuw.edu.pl, http://fleksem.klf.uw.edu.pl/~jsbien/