https://jewishencyclopedia.com/directory/L/9807?page=3
LEVI, BENEDIKT - LEVITAN, ISAAC (ISAAC ILYICH) - JewishEncyclopedia.com
Complete contents the 1906 Jewish Encyclopedia.
levitan isaacbenediktilyich
https://www.sothebys.com/en/auctions/ecatalogue/2009/russian-paintings-day-sale-l09675/lot.309.html
(#309) Isaac Ilich Levitan
309isaacilichlevitan