Rozsah hlasu a poloha a rozsah konverzačního hlasu u osob s vrozenou těžkou oboustrannou vadou sluchu = Voice range, its position and range of the conversation voice in people with congenital severe bilateral hearing loss / M. Lejska ... [et al.]. Choroby hlavy a krku Roč. 11, č. 3-4 (2002), s. 34-38