- Ions--Congresses (2)
- Chemical reaction, Conditions and laws of--Congresses (1)
- Chemistry, Physical and theoretical--Congresses (1)
- Molecules--Congresses (1)
- Photochemistry--Congresses (1)
- Quantum chemistry--Congresses (1)
- Radiation chemistry (1)
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- Vacuum ultraviolet spectroscopy--Congresses (1)