Bhangale, Amey, et al. “Bi-Covering: Covering Edges With Two Small Subsets of Vertices”. SIAM Journal on Discrete Mathematics, vol. 31, no. 4, 2017, pp. 2626-4, https://doi.org/10.1137/16m1082421.
Bhangale, A., Gandhi, R., Hajiaghayi, M. T., Khandekar, R., & Kortsarz, G. (2017). Bi-Covering: Covering Edges with Two Small Subsets of Vertices. SIAM Journal on Discrete Mathematics, 31(4), 2626-2646. https://doi.org/10.1137/16m1082421
Bhangale, Amey, Rajiv Gandhi, Mohammad T. Hajiaghayi, Rohit Khandekar, and Guy Kortsarz. “Bi-Covering: Covering Edges With Two Small Subsets of Vertices”. SIAM Journal on Discrete Mathematics 31, no. 4 (2017): 2626-46. https://doi.org/10.1137/16m1082421.
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Bhangale A, Gandhi R, Hajiaghayi MT, Khandekar R, Kortsarz G. Bi-Covering: Covering Edges with Two Small Subsets of Vertices. SIAM Journal on Discrete Mathematics. 2017;31(4):2626-4.