Martins, V., Yamashita, C., Sousa, S.H.M., Martins, P., Laut, L.L.M., Figueira, R.C.L., Mahiques, M.M., da Silva, E. Ferreira, Rocha, F., and Alveirinho Dias, J.M. 2011. The response of benthic foraminifera to pollution and environmental stress in Ria de Aveiro (N Portugal). Journal of Iberian Geology 37, 2, 231–243. DOI:https://doi.org/10.5209/rev_JIGE.2011.v37.n2.10