Classification and coding system for printed works and documentary materials

Order of all-Soviet product classificatory encoding in design documentation.

Coding of numbers for operations and conversions.

Classification of machining operations of billets made of optical materials.

Order of development and introduction of All-Russia Production Classification departmental section in the system of the Ministry of Energy of the USSR.

Basic Provisions of the Unified System for the Classification and Coding of Techno-Economic and Social Information and Unified Documentation Systems of the Russian Federation