Hummel, H., Frost, M., Juanes, J. A., Kochmann, J., Castellanos Perez Bolde, C. F., Aneiros, F., Vandenbosch, F., Franco, J. N., Echavarri, B., Guinda, X., Puente, A., Fernández, C., Galván, C., Merino, M., Ramos, E., Fernández, P., Pitacco, V., Alberte, M., Wojcik, D., Grabowska, M., Jahnke, M., Crocetta, F., Carugati, L., Scorrano, S., Fraschetti, S., García, P. P., Sanabria Fernández, J. A., Poromov, A., Iurchenko, A., Isachenko, A., Chava, A., Pavloudi, C., Bordeyne, F., Andersen, S. F., Eronat, E. G. T., Cakmak, T., Louizidou, P., Rico, J., Ruci, S., Corta Diego, D., Mendez, S., Rousou, M., de Clippele, L., Eriksson, A., van Zanten, W., Diamant, A., & de Matos, V. K. F. (n.d.). a comparison of the degree of implementation of marine biodiversity indicators by European countries in relation to the Marine Strategy Framework Directive (MSFD). Journal of the Marine Biological Association of the United Kingdom, 95, 1519–1531. http://access.bl.uk/ark:/81055/vdc_100030532992.0x00000b