![](https://dblp.uni-trier.de./img/logo.320x120.png)
![search dblp search dblp](https://dblp.uni-trier.de./img/search.dark.16x16.png)
![search dblp](https://dblp.uni-trier.de./img/search.dark.16x16.png)
default search action
"Improved formulations to the hierarchical health facility ..."
James M. Tien, Khalaf El-Tell, Gene R. Simons (1983)
- James M. Tien, Khalaf El-Tell, Gene R. Simons:
Improved formulations to the hierarchical health facility location-allocation problem. IEEE Trans. Syst. Man Cybern. 13(6): 1128-1132 (1983)
![](https://dblp.uni-trier.de./img/cog.dark.24x24.png)
manage site settings
To protect your privacy, all features that rely on external API calls from your browser are turned off by default. You need to opt-in for them to become active. All settings here will be stored as cookies with your web browser. For more information see our F.A.Q.