Arima has enough research that it’s covered in the Wikipedia section[0] as well as the Chess Programming Wiki[1], which is linked in the README. I’m specifically trying to collect research on contemporary games, which are not so easily available. Chess/Go and alike games are very covered already, however imperfect information games are much rarer for eg.

[0]: https://en.m.wikipedia.org/wiki/Computer_Arimaa

[1]: https://www.chessprogramming.org/Arimaa