SINGER R., KUTHAN J. (1976): Notes on Boletes. Česká Mykologie 30(3-4): 143-155 [published: 1976]
JANDA V., KŘÍŽ M., KONVALINKOVÁ T., BOROVIČKA J. (2017): Macroscopic variability of Rubroboletus legaliae with special regard to Boletus spinarii. Czech Mycology 69(1): 31-50 [published: 12th May, 2017]