1. Agerer R (1986) Studies on ectomycorrhizae. III. Mycorrhizae formed by four species in the genera Lactarius and Russula on spruce. Mycotaxon 27: 1–59
2. Agerer R (1987a) Studies on ectomycorrhizae. V. Mycorrhizae formed by Dermocybe cinnamomea and D. sanguinea on spruce. Nova Hedwigia 44: 69–89
3. Agerer R (1987b) Studies on ectomycorrhizae. IX. Mycorrhizae formed by Tricholoma sulfureum and T. vaccinum on spruce. Mycotaxon 28: 327–360
4. Agerer R (1987c) Studies on ectomycorrhizae. X. Mycorrhizae formed by Cortinarius obtusus and C. venetus on spruce. Mycologia 79: 524–539
5. Agerer R (1987d) The ecological crucial question of ectomycorrhizae: how to make rhizomorphs. In: Sylvia DM, Hung LL, Graham JH (eds) Mycorrhizae in the next decade. Practical applications and research priorities. University of Florida, Gainesville, p 184