Mugang Lin, Bin Fu, Qilong Feng: Constant Factor Approximation Algorithm for l-Pseudoforest Deletion Problem[C] //In proceedings of the 24th Annual International Computing and Combinatorics Conference (COCOON), 2018: 726-737.

Mugang Lin, Wenjun Li. Parameterized Minimum Cost Partition of a Tree with Supply and Demand[C]//In 9th International Frontiers of Algorithmics Workshop(FAW2015), 2015. 180-189.