Pringle, E. G. (2016). Orienting the Interaction Compass: Resource Availability as a Major Driver of Context Dependence. PLoS Biology, 14(10), e2000891. http://doi.org/10.1371/journal.pbio.2000891.
Martin, Bradford D.; Schwab, Ernest (2013). „Current usage of symbiosis and associated terminology”. International Journal of Biology. 5 (1): 32—45. doi:10.5539/ijb.v5n1p32.
Gómez, José M.; González-Megías, Adela (2002). „Asymmetrical interactions between ungulates and phytophagous insects: Being different matters”. Ecology. 83 (1): 203—11. doi:10.1890/0012-9658(2002)083[0203:AIBUAP]2.0.CO;2.
. Academic Search Premier. „Annual review of ecology and systematics”. Annual Review of Ecology and Systematics (на језику: енглески). 1970. OCLC1091085133.