year={1991}
}
-@BOOK{AMPL,
- AUTHOR = "Robert Fourer and David M. Gay and Brian W. Kernighan",
- TITLE = "AMPL: A Modeling Language for Mathematical Programming",
- PUBLISHER = "Cengage Learning",
- YEAR = "November 12, 2002",
- edition = "2nd",
-
+@article{gentili2013,
+year={2013},
+journal={Optimization Letters},
+volume={7},
+number={1},
+title={α-Coverage to extend network lifetime on wireless sensor networks},
+publisher={Springer-Verlag},
+author={Gentili, Monica and Raiconi, Andrea},
+pages={157-172},
}
-@ARTICLE{glpk,
-author = {Andrew Makhorin},
-title = {The GLPK (GNU Linear Programming Kit)},
-journal = {Available: https://www.gnu.org/software/glpk/},
-year = {2012}
-}
\ No newline at end of file
+
+@article{idrees2015distributed,
+ title={Distributed lifetime coverage optimization protocol in wireless sensor networks},
+ author={Idrees, Ali Kadhum and Deschinkel, Karine and Salomon, Michel and Couturier, Rapha{\"e}l},
+ journal={The Journal of Supercomputing},
+ volume={71},
+ number={12},
+ pages={4578--4593},
+ year={2015},
+ publisher={Springer US}
+}