Analysis of information sources in references of the Wikipedia article "Alexander Glazunov" in English language version.
Glazunov became a teacher at the St. Petersburg Conservatory (1900) and later its director (1905)... ...Among his many pupils, one of the last and most famous was Dmitri Shostakovich, on whose behalf Glazunov personally interceded during the parlous postrevolutionary years to ensure adequate paper and food was supplied to his talented pupil.
