Monographic study "Lviv Rus in the first half of the 16th century" and a collection of materials "Materials for the history of Lviv Rus (1460-1550)" Ivan Kripyakevich prepared for publication back in 1907. "Lviv Rus" was published that year in "Notes of the Scientific Society named after Shevchenko" (vols. 77-79) and came out as a separate imprint. The original materials, for reasons beyond the control of the author, lay down for many years in the archive.