TY - GEN AU - Slama, Jiri, ID - 11678 KW - Patents. KW - PATENTS : ACQUISITION : REGISTRATION, REGISTERS, FORMS. N1 - [With resumes in French, German, Spanish and Russian]. T1 - Analysis by means of a gravitation model of international flows of patent applications / TI - Analysis by means of a gravitation model of international flows of patent applications / VL - 1981 Vol 3 No 1 pages 2-8 ER -