| 1971 | ||
|---|---|---|
| 2 | Preston C. Hammer, Richard M. Jones: Connected Sets: Bases and Metrics. Mathematical Systems Theory 5(3): 282-288 (1971) | |
| 1967 | ||
| 1 | Preston C. Hammer: Extended Topology and Systems. Mathematical Systems Theory 1(2): 135-142 (1967) | |
| 1 | Richard M. Jones | [2] |