Russian Federation Lecture “Voice training. Breathing exercises for phonation” 2019-04-08 Russian Federation
Russian Federation Article “Phonopedics as an effective method of voice function restoration” 2019-04-08
Russian Federation Lecture “Characteristics of sonority disorders in children and teenagers” 2019-04-08
Russian Federation Laryngeal examination of singers of Astrakhan State Song and Dance Ensemble 2019-04-15