PIKÁLEK P. (1996): To commemorate the seventieth birthday of Jan Nečásek. Czech Mycology 49(1): 59-63 (published: 30th May, 1996)
PIKÁLEK P. (1985): Sexagenario RNDr. Jan Nečásek, CSc., ad salutem! Česká Mykologie 39(3): 169-172 (published: 1985)
