Pello, J. y Corrales, I. (1971) «Characteristics of the sedimentation of early Westphalian D rocks near the north-western border of the Central Asturian Coalfield (Cordillera Cantábrica)», Trabajos de Geología, 4(4), pp. 365–373. doi: 10.17811/tdg.4.1971.365-373.