COMPUTATIONAL MECHANICS OF COMBINED PLANAR DEFECTS: EXTRINSIC + INTRINSIC FAULTING IN 3C CLOSE PACKED CRYSTAL STRUCTURES. - ARAGON-FERNANDEZ, BEATRIZ; ESTEVEZ-RAMS, E.; LORA-SERRANO, R.; PENTÓN-MADRIGAL, A. (Revista Cubana de Física, 2018)