Vijapure Y. Synthesis And Properties of Ho+3 Doped Co-Cr-Fe Ferrite Nanoparticles Prepared by Sol-Gel Chemical Route. Int. j. res. appl. sci. biotechnol. [Internet]. 2022 Jan. 31 [cited 2024 Dec. 22];9(1):203-6. Available from: https://ijrasb.com/index.php/ijrasb/article/view/432