Annette Bussmann-Holder and Hugo Keller, 1986 a landmark in the research of superconductivity: From elemental and simple crystalline systems to complex oxide ceramics (Topical Review), Low Temp. Phys. 52, 1286–1295, (2026) [Fiz. Nyzk. Temp. 52, 1428–1439, (2026)] DOI: https://doi.org/10.1063/10.0046878.