title: [The 70th birthday and 50th anniversary of the scientific educational and social activities of Z. A. Lebedeva].
mesh_terms: D049673:History, 20th Century; D014586:USSR
vernacular_title: K 70-letiiu so dnia rozhdeniia i k 50-letiiu nauchnoi pedagogicheskoi i obshchestvennoi deiatel'nosti Z. A. Lebedevoi.