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Dive into the research topics of 'Effect of rare-earth Sm<sup>3+</sup> substitution on the superconducting properties of the Bi<sub>1.7</sub>Pb<sub>0.3</sub>Sr<sub>2</sub>Ca<sub>2-x</sub>Sm<sub>x</sub>Cu<sub>3</sub>O<sub>y</sub> system'. Together they form a unique fingerprint.