Chemistry, Physical and theoretical 215 Mathematics 11 Chemistry 9 Chemistry, Inorganic 9 Biochemistry 7 Problems, exercises, etc 7 Chemistry, Organic 6 Chemistry, physical and theoretical 5 Thermodynamics 5 Quantum chemistry 4 Surface chemistry 4 Mathematical analysis 3 Mathematical physics 3 Molecular structure 3 Chemical engineering 2 Chemical reactions 2 Chemistry, Physical and theoretical--Study and teaching (Higher) 2 Chemistry-Physical and theoretical 2 Computational chemistry 2 Conformal mapping 2 Congresses 2 Coordination compounds 2 Crystallography 2 Data processing 2 Group theory 2 Laboratory manuals 2 Molecules 2 Physics 2 Polymers 2 Quantum theory 2