The following publications are possibly variants of this publication:
- Greedy approximations for minimum submodular cover with submodular costPeng-Jun Wan, Ding-Zhu Du, Panos M. Pardalos, Weili Wu. coap, 45(2):463-474, 2010. [doi]
- A bicriteria algorithm for the minimum submodular cost partial set multi-cover problemYishuo Shi, Yingli Ran, Zhao Zhang 0002, Ding-Zhu Du. TCS, 803:1-9, 2020. [doi]
- A Bicriteria Approximation Algorithm for Minimum Submodular Cost Partial Multi-Cover ProblemYishuo Shi, Zhao Zhang 0002, Ding-Zhu Du. AAIM 2018: 62-73 [doi]