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Author: Byrd, Richard D.

• Byrd, Richard D.; Lloyd, Justin T.; Mena, Roberto A.; Teller, J. Roger: The lattice of solid $\sigma$-subgroups of a retractable group. (English). Czechoslovak Mathematical Journal, vol. 28 (1978), issue 2, pp. 189-199
• Byrd, Richard D.: $M$-polars in lattice-ordered groups. (English). Czechoslovak Mathematical Journal, vol. 18 (1968), issue 2, pp. 230-239