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References
- 1 2 3 4 Allen, Michael F.; Tuthill, Dorothy E.; States, Jack; Williams, Stephen E.; Henkel, Terry W. (29 January 2019). "In memoriam: Martha Christensen, 1932−2017". Mycologia. 111 (1): 190–193. doi: 10.1080/00275514.2018.1544815 .
- ↑ Sivanpillai, Ramesh (23 March 2017). "Botany @ UW: In Memoriam: Martha Christensen (1932-2017)". Botany @ UW. Retrieved 15 March 2019.
- ↑ Wilmot, Gary (3 April 2017). "In Memory: Martha Christensen | Wyoming Outdoor Council".
- ↑ International Plant Names Index. M.Chr.
- ↑ "Index Fungorum - Fungal Name Author Details". www.indexfungorum.org. Retrieved 15 March 2019.
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