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"The Nobel Prize in Chemistry 2013" (Press release). Royal Swedish Academy of Sciences. October 9, 2013. Archived from the original on December 24, 2018. Retrieved October 9, 2013.
"Martin Karplus". Department of Chemistry, Michigan State University. May 13, 2024. Archived from the original on July 22, 2024. Retrieved January 3, 2025.
"The Nobel Prize in Chemistry 2013" (Press release). Royal Swedish Academy of Sciences. October 9, 2013. Archived from the original on December 24, 2018. Retrieved October 9, 2013.