Congresses 23 Biochemistry (Journal) 15 Chemistry 15 Polymers 12 Polymerization 11 Soil chemistry 11 Plant Protection 10 Soil development 7 MOLECULAR STRUCTURE BY DIFFRACTION METHODS 6 ELECTRONIC STRUCTURE AND MAGNETISM OF INORGANIC COMPOUNDS 5 ANNUAL REPORTS ON THE PROGRESS OF CHEMISTRY-- SECTION A PHYSICAL AND INORGANIC CHEMISTRY 4 ANNUAL REPORTS ON THE PROGRESS OF CHEMISTRY-- SECTION B ORGANIC CHEMISTRY 4 Chemistry, Inorganic 4 Environmental chemistry 4 Pesticides 4 Pollution 4 Polymer technology 4 ANNUAL REPORTS ON THE PROGRESS OF CHEMISTRY 3 Biochemistry 3 Biotechnology 3 Coordination compounds 3 Pest control 3 Photochemistry 3 Physics 3 chemical technology 3 A SPECIALIST PERIODICAL REPORT PHOTOCHEMISTRY 2 Analysis 2 Aromatic compounds 2 Biodegradation 2 Bioinorganic chemistry 2