- IBM 650 computer
- 3-9
- IBM 704 computer
- 3-12
- IBM personal computer programs
- 6-69
- IBM, California
- 5-1
- Indian Institute of Science, Bangalore
- 7-6
- Indian Institute of Technology, Bombay
- 8-2
- Indiana University
- 7-2
- Indiana University, Quantum Chemistry Program Exchange
- 7-2 8-13 9-1
- Internal rotation
- 6-36
- International Conference on Coordination Chemistry (XII)
- 8-18
- International Congress of Pure and Applied Chemistry (XXII)
- 8-18
- International Journal of Quantum Chemistry
- 1-4 6-41 6-54 6-67 6-76 7-1 7-2 7-3 8-2 8-12
- International Symposium on Atomic, Molecular and Solid State Physics in Honour of J. C. Slater
- 6-39
- Iowa State University, Ames, USA
- 4-2 4-3 4-4 6-67 8-14
- Israel Journal of Chemistry
- 6-66 7-3 8-2
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