Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) A. P. Cracknell and M. F. Cracknell and B. L. Davies,Landau's Theory of Second‐Order Phase Transitions and the Magnetic Phase Transitions in Some Antiferromagnetic Oxides,physica status solidi (b),0370-1972,Wiley,1970-01,39,2,463-469,https://cir.nii.ac.jp/crid/1360294647945144704,https://doi.org/10.1002/pssb.19700390212