Michał Babij, Daniel Gajda, and Andrzej Zaleski, The influence of microstructure on the transport critical current density in MgB₂ wires obtained by PIT methods , Low Temp. Phys. 52, 1349–1361, (2026) [Fiz. Nyzk. Temp. 52, 1496–1508, (2026)] DOI: https://doi.org/10.1063/10.0046907.