Heijden, E. W. Van der; Kuyper, Th W. (2001-01-01). "Laboratory experiments imply the conditionality of mycorrhizal benefits for Salix repens: role of pH and nitrogen to phosphorus ratios". Plant and Soil. 228 (2): 275–290. doi:10.1023/A:1004850423794. ISSN0032-079X. S2CID22296398.
van der Heijden, EW; Vosatka, M (2000-02-20). "Mycorrhizal associations of Salix repens L. communities in succession of dune ecosystems. II. Mycorrhizal dynamics and interactions of ectomycorrhizal and arbuscular mycorrhizal fungi". Canadian Journal of Botany. 77 (12): 1833–1841. doi:10.1139/b99-178. ISSN0008-4026.
Heijden, E. W. van der (2001-01-01). "Differential benefits of arbuscular mycorrhizal and ectomycorrhizal infection of Salix repens". Mycorrhiza. 10 (4): 185–193. doi:10.1007/s005720000077. ISSN0940-6360. S2CID10605629.
Heijden, E. W. Van der; Kuyper, Th W. (2001-01-01). "Laboratory experiments imply the conditionality of mycorrhizal benefits for Salix repens: role of pH and nitrogen to phosphorus ratios". Plant and Soil. 228 (2): 275–290. doi:10.1023/A:1004850423794. ISSN0032-079X. S2CID22296398.
Heijden, E. W. van der (2001-01-01). "Differential benefits of arbuscular mycorrhizal and ectomycorrhizal infection of Salix repens". Mycorrhiza. 10 (4): 185–193. doi:10.1007/s005720000077. ISSN0940-6360. S2CID10605629.
Heijden, E. W. Van der; Kuyper, Th W. (2001-01-01). "Laboratory experiments imply the conditionality of mycorrhizal benefits for Salix repens: role of pH and nitrogen to phosphorus ratios". Plant and Soil. 228 (2): 275–290. doi:10.1023/A:1004850423794. ISSN0032-079X. S2CID22296398.
van der Heijden, EW; Vosatka, M (2000-02-20). "Mycorrhizal associations of Salix repens L. communities in succession of dune ecosystems. II. Mycorrhizal dynamics and interactions of ectomycorrhizal and arbuscular mycorrhizal fungi". Canadian Journal of Botany. 77 (12): 1833–1841. doi:10.1139/b99-178. ISSN0008-4026.
Heijden, E. W. van der (2001-01-01). "Differential benefits of arbuscular mycorrhizal and ectomycorrhizal infection of Salix repens". Mycorrhiza. 10 (4): 185–193. doi:10.1007/s005720000077. ISSN0940-6360. S2CID10605629.