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Cardoso, André C.; Arenas, Francisco; Sousa-Pinto, Isabel; Barreiro, Aldo; Franco, João N. (April 2020). "Sea urchin grazing preferences on native and non-native macroalgae". Ecological Indicators. 111: 106046. Bibcode:2020EcInd.11106046C. doi:10.1016/j.ecolind.2019.106046. S2CID91896181.
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Cardoso, André C.; Arenas, Francisco; Sousa-Pinto, Isabel; Barreiro, Aldo; Franco, João N. (April 2020). "Sea urchin grazing preferences on native and non-native macroalgae". Ecological Indicators. 111: 106046. Bibcode:2020EcInd.11106046C. doi:10.1016/j.ecolind.2019.106046. S2CID91896181.