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Levine, Daniel S.; Head-Gordon, Martin (29 Eylül 2020). "Clarifying the quantum mechanical origin of the covalent chemical bond". Nature Communications. 11 (1). Springer Science and Business Media LLC. s. 4893. doi:10.1038/s41467-020-18670-8. ISSN2041-1723. PMC7524788 $2. PMID32994392.
Levine, Daniel S.; Head-Gordon, Martin (29 Eylül 2020). "Clarifying the quantum mechanical origin of the covalent chemical bond". Nature Communications. 11 (1). Springer Science and Business Media LLC. s. 4893. doi:10.1038/s41467-020-18670-8. ISSN2041-1723. PMC7524788 $2. PMID32994392.
Levine, Daniel S.; Head-Gordon, Martin (29 Eylül 2020). "Clarifying the quantum mechanical origin of the covalent chemical bond". Nature Communications. 11 (1). Springer Science and Business Media LLC. s. 4893. doi:10.1038/s41467-020-18670-8. ISSN2041-1723. PMC7524788 $2. PMID32994392.