Callac P, Billette C, Imbernon M, Kerrigan RW (1993). "Morphological, genetic, and interfertility analyses reveal a novel, tetrasporic variety of Agaricus bisporus from the Sonoran Desert of California". Mycologia. 85 (5): 835–851. doi:10.2307/3760617. JSTOR3760617.
Callac P, Billette C, Imbernon M, Kerrigan RW (1993). "Morphological, genetic, and interfertility analyses reveal a novel, tetrasporic variety of Agaricus bisporus from the Sonoran Desert of California". Mycologia. 85 (5): 835–851. doi:10.2307/3760617. JSTOR3760617.
Haytowitz DB (2009). "Vitamin D in mushrooms"(PDF). Nutrient Data Laboratory, US Department of Agriculture. Archived(PDF) from the original on 1 February 2021. Retrieved 16 April 2018.
GourmetSleuth (11 November 2013). "Portobello (Portobella) Mushrooms". Gourmet Sleuth. Archived from the original on 10 January 2019. Retrieved 9 January 2019.
Haytowitz DB (2009). "Vitamin D in mushrooms"(PDF). Nutrient Data Laboratory, US Department of Agriculture. Archived(PDF) from the original on 1 February 2021. Retrieved 16 April 2018.