Yurlinskii krai. Traditsionnaya kul'tura russkikh kontsa XIX-XX vekov [Yurlisky region. The traditional Russian culture of the late XIX-XX centuries]. Materials and research / authors: A. A. Bakhmatov, I. A. Podjukov, S. V. Khorobrykh, A. V. Chernykh. Kudymkar, 2003. 496 p. In Russian.
Komi mutoloogia [Komi mythology] // editors: Anna-Leena Siikala, Vladimir Napol'skikh, Mihaly Hoppal. Tartu, 2015. 472 lk. In Estonian.
Sharapov V. E. Birch and Spruce in Mythological Concepts of the Komi People // Uralic Mythology (Specimina Sibirica VI). Szombathely: Savariae, 1993. P. 159-170. In English.