· 2018-11-16 · Magic Squares Curiosum Chakrabarti, S. C. On the Sign of the Eccentricity of the...
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· 2018-11-16 · Magic Squares Curiosum Chakrabarti, S. C. On the Sign of the Eccentricity of the Conic Eric Gotlind. A Note on an Article by R. K. P. Singh and R. Shukla Hari Das
