| P2093 | author name string | Roberts G | |
| P2860 | cites work | The evolution of cooperation | Q22065515 |
| | Mate selection—A selection for a handicap | Q28214988 |
| | Complex Cooperative Strategies in Group-Territorial African Lions | Q28296066 |
| | Biological signals as handicaps | Q28298209 |
| | TIT FOR TAT in sticklebacks and the evolution of cooperation | Q34191291 |
| | Distinguishing mechanisms for the evolution of co-operation | Q45002918 |
| | The evolution of reciprocity in sizable groups | Q46315501 |
| | Cooperation and the Prisoner's Dilemma: towards testable models of mutualism versus reciprocity | Q51101248 |
| | The prisoner's dilemma without synchrony. | Q51132606 |
| | Friendship and the evolution of co-operation. | Q51142148 |
| P433 | issue | 1394 | |
| P1104 | number of pages | 5 | |
| P304 | page(s) | 427-431 | |
| P577 | publication date | 1998-03-01 | |
| P1433 | published in | Proceedings of the Royal Society B | Q2625424 |
| P1476 | title | Competitive altruism: from reciprocity to the handicap principle. | |
| P478 | volume | 265 | |