Jain, Kamal; Vazirani, Vijay V. (2001), "Approximation algorithms for metric facility location and k-median problems using the primal-dual schema and Lagrangian relaxation", Journal of the ACM, 48 (2): 274–296, doi:10.1145/375827.375845, MR1868717, S2CID2353092. See Williamson, David P.; Shmoys, David B. (2011), The Design of Approximation Algorithms, Cambridge University Press, p. 191, ISBN9781139498173
Mehta, Aranyak; Saberi, Amin; Vazirani, Umesh; Vazirani, Vijay (2007), "AdWords and generalized online matching", Journal of the ACM, 54 (5): Art. 22, 19, doi:10.1145/1284320.1284321, MR2359264, S2CID8481313
Jain, Kamal; Vazirani, Vijay V. (2001), "Approximation algorithms for metric facility location and k-median problems using the primal-dual schema and Lagrangian relaxation", Journal of the ACM, 48 (2): 274–296, doi:10.1145/375827.375845, MR1868717, S2CID2353092. See Williamson, David P.; Shmoys, David B. (2011), The Design of Approximation Algorithms, Cambridge University Press, p. 191, ISBN9781139498173
Jain, Kamal; Vazirani, Vijay V. (2001), "Approximation algorithms for metric facility location and k-median problems using the primal-dual schema and Lagrangian relaxation", Journal of the ACM, 48 (2): 274–296, doi:10.1145/375827.375845, MR1868717, S2CID2353092. See Williamson, David P.; Shmoys, David B. (2011), The Design of Approximation Algorithms, Cambridge University Press, p. 191, ISBN9781139498173
Mehta, Aranyak; Saberi, Amin; Vazirani, Umesh; Vazirani, Vijay (2007), "AdWords and generalized online matching", Journal of the ACM, 54 (5): Art. 22, 19, doi:10.1145/1284320.1284321, MR2359264, S2CID8481313
Jain, Kamal; Vazirani, Vijay V. (2001), "Approximation algorithms for metric facility location and k-median problems using the primal-dual schema and Lagrangian relaxation", Journal of the ACM, 48 (2): 274–296, doi:10.1145/375827.375845, MR1868717, S2CID2353092. See Williamson, David P.; Shmoys, David B. (2011), The Design of Approximation Algorithms, Cambridge University Press, p. 191, ISBN9781139498173
Mehta, Aranyak; Saberi, Amin; Vazirani, Umesh; Vazirani, Vijay (2007), "AdWords and generalized online matching", Journal of the ACM, 54 (5): Art. 22, 19, doi:10.1145/1284320.1284321, MR2359264, S2CID8481313