@article{Van Loon_1971, title={The stratigraphy of the Westphalian C around Prioro (prov. León. Spain) (with Paleontological Notes by G.E. de Groot, H.W.J. van Amerom and R.H. Wagner)}, volume={3}, url={https://reunido.uniovi.es/index.php/TDG/article/view/2676}, DOI={10.17811/tdg.3.1971.231-267}, number={3}, journal={Trabajos de Geología}, author={Van Loon, A.J.}, year={1971}, month={dic.}, pages={231–267} }