Ivanov А. И. “From the School of V.M. Blazhevich: A.K. Lebedev and His Compositions for the Tuba”. Music Scholarship / Problemy Muzykal’noj Nauki, vol. 43, no. 2, July 2021, pp. 91-97, https://musicscholar.ru/index.php/PMN/article/view/1268.