Poselennja 10-11 st. bilja s. Čerčika na Javorivščini. (The settlement of 10-11 century near Cherchyk village in Javoriv district) - Petegyryč, Volodymyr M. (Materialy i Doslidžennja z Arheologiji Prykarpattja i Volyni, 9 (2005), 2005)