@other{https://resolver.caltech.edu/CaltechTHESIS:11042009-080816954, title = "I. The generalized valence bond theory of electronic structure. II. An orbital interpretation of superexchange in antiferromagnetic insulators", url = "https://resolver.caltech.edu/CaltechTHESIS:11042009-080816954", id = "record", doi = "10.7907/D2P6-BA46" }