Pyekhtyeryev, V. (2008). Idempotent D -cross-sections of the finite inverse symmetric semigroup ISn. Algebra and Discrete Mathematics.
Chicago Style (17th ed.) CitationPyekhtyeryev, V. "Idempotent D -cross-sections of the Finite Inverse Symmetric Semigroup ISn." Algebra and Discrete Mathematics 2008.
MLA (8th ed.) CitationPyekhtyeryev, V. "Idempotent D -cross-sections of the Finite Inverse Symmetric Semigroup ISn." Algebra and Discrete Mathematics, 2008.
Warning: These citations may not always be 100% accurate.