Neto de Carvalho, C. and N.P.C. Rodrigues. “Compound Asterosoma ludwigae Schlirf, 2000 from the Jurassic of the Lusitanian Basin (Portugal): conditional strategies in the behaviour of Crustacea”. Journal of Iberian Geology, vol. 33, vol. 33, no. 2, 2007, pp. 295-10, https://revistas.ucm.es/index.php/JIGE/article/view/JIGE0707210295A.