共 26 条
- [21] HINDMAN N, IN PRESS P SET THEOR
- [22] Hindman N., 1979, LECT NOTES MATH, V751, P119
- [23] LISAN A, 1988, THESIS HOWARD U
- [24] Milnes P., 1973, Journal of the Australian Mathematical Society, Series A (Pure Mathematics), V15, P488
- [25] Rado R., 1943, P LOND MATH SOC, V48, P122
- [26] RUPPERT W, 1973, J REINE ANGEW MATH, V261, P123