TY  - BOOK
AU  - Červova, L.
ED  - "Inventive activity and scientific and technical progress. Problems of patent information retrieval", scientific symposium
TI  - Patentability of proposals relating to methods of producing novel chemical compounds
PY  - 1969///]
CY  - [М.
KW  - Х-190[Г23-4]
KW  - rubbk
ER  -