Formation of Nanocrystalline ferrite: Effect of Citric Acid on Structural and Spectroscopic PropertiesYashpal Choudhary, Shobha Ram Choudhary, P.M. Saini, Ritu, P. A. Alvi and B. L. ChoudharyEPJ Web Conf., 356 (2026) 01004DOI: https://doi.org/10.1051/epjconf/202635601004