1. Acsai J, Largent DL (1983a) Fungi associated with Arbutus menziesii, Arctostaphylos uva-ursi in central and northern California. Mycologia 75:544–547
2. Acsai J, Largent DL (1983b) Mycorrhizae of Arbutus menziesii Pursh. and Arctostaphylos manzanita Parry in northern California. Mycotaxon 16:519–536
3. Agerer R (1987–2012) Colour atlas of ectomycorrhizae. 1st–15th delivery, Einhorn, Schwäbisch Gmünd
4. Techniques for the study of mycorrhiza;R Agerer,1991
5. Agerer R (1999) Elaphomyces aculeatus Tul. + Quercus robur L. In: Agerer L, Danielson RM, Egli S, Ingleby K, Luoma D, Treu R (eds) Descriptions of ectomycorrhizae, vol 4. Einhorn, Schwäbisch Gmünd, pp 37–41