## [efros summary](https://arxiv.org/ftp/cond-mat/papers/0011/0011093.pdf)

## [slef-constent solution - Raikh-Mogilyanskii](http://www.jetp.ras.ru/cgi-bin/dn/e_068_05_1081.pdf)

Khmelnitskii https://arxiv.org/pdf/cond-mat/9601080.pdf