Authors Year Title
Oliveira, Horn & Paproth 1979 Preliminary note on the stratigraphy of the Baixo Alentejo Flysch Group, Carboniferous of Southern Portugal and on the palaeogeographic development, compared to corresponding units in Northwest Germ
Comunicacoes dos Servicos de Portugal, 65: 151-168, fig.1-5, tab.1-2, pl.1-4; Lisboa.