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- [6] The Independence Number of Graphs with a Forbidden Cycle and Ramsey Numbers Journal of Combinatorial Optimization, 2003, 7 : 353 - 359
- [8] QUOTIENTS DETERMINED BY A CORRESPONDENCE - PRELIMINARY REPORT NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1971, 18 (07): : 1048 - &
- [9] PULLBACKS (SPINED PRODUCTS) ARE QUOTIENTS - PRELIMINARY REPORT NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1972, 19 (01): : A92 - &
- [10] TOPOLOGIES FOR QUOTIENTS OF COMMUTATIVE ALGEBRAS - PRELIMINARY REPORT NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1974, 21 (01): : A109 - A109