There is a link at the first page, in Russian translations section... I just added patch, link is the same. To apply Russian patch you must find and download original Majora's Mask 3D EUR Rev1 ROM (1627). Then place it into the "original" folder after extracting the patch archive. Then run one of the 3 .bat files, depending on what translated ROM you need: .3ds (for Gateway, etc), .cia (for CFW) or .cxi (for Citra emulator). That's it.