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    Journal of Symbolic Logic. doi:10.1017/jsl.2024.55
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    Journal of Algebra, 630(15):68–91, 2023. doi:10.1016/j.jalgebra.2023.03.043
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    Communications in Algebra, 51(4), 1383–1412, 2022. doi:10.1080/00927872.2022.2137172
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    Journal of Fixed Point Theory and Applications, 21(4), 2019. doi:10.1007/s11784-019-0729-4