Korolkova, G. E. 1960. Osnovnye certy dejatel'nosti djatlov v dubravah Tellermanovskogo massiva iStarobel' skih stepej [Main features of the activity of woodpeckers in the oak forests of the Tellerman massif and the Starobelsk steppes] . Instituta Lesa (Moskva), Trudy 48:7-58.