H.  Weimarck, ?Från Lunds Botaniska Förenings förhandlingar 1948?1949?, Botaniska notiser, no. 1, p. 120, 1950.

A.  Löve and Löve, D., ?Chromosome numbers of Scandinavian plant species?, Botaniska notiser, pp. 19-59, 1942.

J.  Näslund, A. Sandman, N., C. Blomstrand, E., and Hernvall, P., ?Typiska arter för naturtypen sublittorala sandbankar?, 2019:04, 2019.

T.  T. de Sousa, ?Os Moliços: flora dos moliços; localização de produção das várias espécies?, Arquivo do Distrito de Aveiro, vol. 2, no. 7, pp. 177-190, 1936.

T.  T. de Sousa, ?Os Moliços: quantidade de moliços; seu valor. Licenças de apanha e transporte?, Arquivo do Distrito de Aveiro, vol. 2, no. 5, pp. 57-64, 1936.

H. N.  Moldenke, ?Marine Flowering Plants?, Torreya, vol. 40, no. 4, pp. 120-124, 1940.

J. T. A.  Verhoeven and van Vierssen, W., ?Distribution and Structure of Communities Dominated by Ruppia, Zostera and Potamogeton Species in the Inland Waters of ?De Bol?, Texel, The Netherlands?, Estuarine and Coastal Marine Science, vol. 6, pp. 417-428, 1978.

J. T. A.  Verhoeven and van Vierssen, W., ?Structure of macrophyte dominated communities in two brackish lagoons on the island of Corsica, France?, Aquatic Botany, vol. 5, pp. 77-86, 1978.

J. T. A.  Verhoeven, ?The ecology of Ruppia-dominated communities in Western Europe. II. Synecological classification. Structure and dynamics of the macroflora and macrofauna communities?, Aquatic Botany, vol. 8, pp. 1-85, 1980.

M.  Vidal, ?Contenido y dinámica del fósforo en el sedimento de praderas de fanerógamas marinas?, Oecologia aquatica, vol. 9, pp. 41-59, 1988.

P.  Ascherson and Graebner, P., Das Pflanzenreich. Regni vegetabilis conspectus. IV. II. Potamogetonaceae, Engler, A. Leipzig: Verlag von Wilhelm Engelmann, 1907, p. 184.

M. H.  Abreu, Pereira, R., Sousa-Pinto, I., and Yarish, C., ?Ecophysiological studies of the non-indigenous species Gracilaria vermiculophylla (Rhodophyta) and its abundance patterns in Ria de Aveiro lagoon, Portugal?, European Journal of Phycology, vol. 46, no. 4, pp. 453-464, 2011.

L. H. T.  Vergeer and denHartog, C., ?Omnipresence of Labyrinthulaceae in seagrasses?, Aquatic Botany, vol. 48, pp. 1-20, 1994.

A. X. Pereira Coutinho, ?Contribuições para o estudo das Monocotyledoneas Portuguezas?, Boletim da Sociedade Broteriana, vol. 15, pp. 6-74, 1898.

L.  Kautsky, ?Seed and tuber banks of aquatic macrophytes in the Asko area, northern Baltic proper?, Holarctic Ecology, vol. 13, pp. 143-148, 1990.

L.  Kautsky, ?Life strategies of aquatic soft bottom macrophytes?, Oikos, vol. 53, pp. 126-135, 1988.

C.  S. Bracamonte, A. Molina, M., García-Murillo, P., and M. Argenta, C., Flora acuática Española. Hidrófitos vasculares, 1stst ed. Madrid: Real Jardín Botánico, CSIC, 2014, p. 320.