Winkler Prins, C. F. (1971) «The road section east of Valdeteja with its continuation along the arroyo de Barcaliente (Curueño Valley, León ) (with a “Note on l.eonardophyllum leonese sp. nov.” by G. E. DE GROOT)», Trabajos de Geología, 4(4), pp. 677–687. doi: 10.17811/tdg.4.1971.677-687.