
| 4OR for what purpose? | 
| Acknowledgement to referees | 
| Linear separation and approximation by minimizing the sum of concave functions of distances | 
| No 7-year itch at 4OR | 
| Plagiarism again: Sreenivas and Srinivas, with an update on Marcu | 
| Using the power of ideal solutions: simple proofs of some old and new results in location theory |