Resolution No. 201 of the Council of Ministers of the BSSR «On the transformation of the Department of Polymer Mechanics of the Academy of Sciences of the BSSR into the Institute of Mechanics of Metal-Polymer Systems of the Academy of Sciences of the BSSR»
Nat. Arch. Rep. of Bel. Сoll. 7. Inv. 5. File. 2410. Sht. 17. Script. Typescript.