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The 5 references without a DOI — listed, not checked
no DOI — not checkedE. OROWAN: ‘Internal stress in metals and alloys’, 451; 1948, London, The Institute of Metals.
no DOI — not checkedT. GLADMAN: ‘The physical metallurgy of microalloyed steels’, 1997, London, The Institute of Materials.
no DOI — not checkedL. M. BROWN and R. K. HAM: in ‘Strengthening methods in crystals’, (ed. A. Kelly and R. B. Nicholson), 12; 1971, London, Applied Science Publishers.
no DOI — not checkedR. B. NICHOLSON: ‘Effect of second phase particles on the mechanical properties of steel’, 1; 1971, London, The Iron and Steel Institute.
no DOI — not checkedCIT0016
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