1. Thrust systems;Boyer;Bull. Am. Ass. Petrol. Geol.,1982
2. Balanced cross sections;Dahlstrom;Can. J. Earth. Sci.,1969
3. Geology of the Upper Segre and Valira Valleys, Central Pyrenees, Andorra/Spain;Hartevelt;Leidse Geol. Meded.,1970
4. Les nappes tardi-hercyniennes entre Cerdagne et Llobregat (versant sud des Pyrénées catalanes);Llac;Bull. Soc. geol. Fr.,1979
5. El Paleozoic prehercinià de la Serra Cavallera (Ripollès);Mun̄oz,1982