Kamal Jain and Vijay V. Vazirani: Approximation algorithms for metric facility location and k-Median problems using the primal-dual schema and Lagrangian relaxation. (2001)journals/jacm/JainV0110.1145/375827.375845Approximation algorithms for metric facility location and k-Median problems using the primal-dual schema and Lagrangian relaxation.2Kamal Jain1Vijay V. Vazirani2274-296J. ACMJ. ACM4822001provenance information for RDF data of dblp record 'journals/jacm/JainV01'2018-11-06T12:51:45+0100