Russian dictionary originally developed by www.aot.ru and licensed under LGPL.
(http://www.aot.ru) or (https://github.com/sokirko74/aot/) file (morphs.mrd).
It was partially converted with additions to fsa format in 2008-2011, 2014, 2016, 2017, 2018, 2021 by Yakov Reztsov.
Frequency information for spell-checking dictionary from (www.aot.ru).
Added frequency information for spell-checking dictionary in 2014, 2016, 2021 by Yakov Reztsov from http://www.aot.ru  (https://github.com/sokirko74/aot/)
Source frequency information https://github.com/sokirko74/aot/tree/master/Dicts/SrcBinDict/  file   WordData.Russian
It was converted to use with spell-checking dictionary in 2014, 2016, 2021 by Yakov Reztsov.