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Natarajan, Arunkumar; Tsai, C. K.; Khan, Saeed I.; McCarren, Patrick; Houk, K. N.; Garcia-Garibay, Miguel A. (2007-08-01). "The Photoarrangement of α-Santonin is a Single-Crystal-to-Single-Crystal Reaction: A Long Kept Secret in Solid-State Organic Chemistry Revealed". Journal of the American Chemical Society. 129 (32): 9846–9847. Bibcode:2007JAChS.129.9846N. doi:10.1021/ja073189o. ISSN0002-7863. PMID17645337.
Natarajan, Arunkumar; Tsai, C. K.; Khan, Saeed I.; McCarren, Patrick; Houk, K. N.; Garcia-Garibay, Miguel A. (2007-08-01). "The Photoarrangement of α-Santonin is a Single-Crystal-to-Single-Crystal Reaction: A Long Kept Secret in Solid-State Organic Chemistry Revealed". Journal of the American Chemical Society. 129 (32): 9846–9847. Bibcode:2007JAChS.129.9846N. doi:10.1021/ja073189o. ISSN0002-7863. PMID17645337.
Natarajan, Arunkumar; Tsai, C. K.; Khan, Saeed I.; McCarren, Patrick; Houk, K. N.; Garcia-Garibay, Miguel A. (2007-08-01). "The Photoarrangement of α-Santonin is a Single-Crystal-to-Single-Crystal Reaction: A Long Kept Secret in Solid-State Organic Chemistry Revealed". Journal of the American Chemical Society. 129 (32): 9846–9847. Bibcode:2007JAChS.129.9846N. doi:10.1021/ja073189o. ISSN0002-7863. PMID17645337.