rueter/Mordvin-Varieties: comparative-mordvin-database

This version has added more map data, and, most importantly, the beginning of a Comparative Mordvin Database for allowing further investigations of Mordvin language variation.

This database accompanies the forthcoming chapter Mordvin by Rueter in The Uralic Languages Abondolo, Valijärvi (eds.). The goal of that study was to investigate the Moksha language with comparative reference to Erzya. Work on these materials are attributed to Rueter, Partanen, Hämäläinen & Erina, Riabov, Klement'eva, Kabaeva, Levina and others.