Everything about the mod and Perisno itself, including credits, can be found here:
https://forums.taleworlds.com/index.php?board=341.0
In particular, this is the mod's thread:
https://forums.taleworlds.com/index.php/topic,368410.0.html
There is some useful information there, in Perisno 0.8 thread and in the notes section inside the game.