Stone، D.S.؛ Yoder، K.B.؛ Sproul، W.D. (1991). "Hardness and elastic modulus of TiN based on continuous indentation technique and new correlation". Journal of Vacuum Science and Technology A. ج. 9 ع. 4: 2543–2547. Bibcode:1991JVSTA...9.2543S. DOI:10.1116/1.577270.
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Stone، D.S.؛ Yoder، K.B.؛ Sproul، W.D. (1991). "Hardness and elastic modulus of TiN based on continuous indentation technique and new correlation". Journal of Vacuum Science and Technology A. ج. 9 ع. 4: 2543–2547. Bibcode:1991JVSTA...9.2543S. DOI:10.1116/1.577270.