Russian source words

[johan.rade@*********]

Should we give Russian source words (as in ザクースカ, ボルシチ, etc.) in 
Cyrillic or Roman letters?
Currently there are 41 entries with Russian source words.
38 use Roman letters and 3 (トカマク, ナロードニキ and ペチカ) use Cyrillic 
letters.
Here is a link to a list
https://dl.dropboxusercontent.com/u/525329/JMDict/russian_source.txt
It is a tab-separated text file with the Russian source words in column 4.

There are many systems for romanizing Russian; see
https://en.wikipedia.org/wiki/Romanization_of_Russian
Our current practice seems to follows BGN/PCGN; see
https://en.wikipedia.org/wiki/BGN/PCGN_romanization_of_Russian

I propose we make it an editorial policy to romanize Russian source 
words and to use BGN/PCGN.

--Johan