A Linear Programming Approach to Expansion Co-Planning in Gas and Electricity Markets Qiu, Jing ; Yang, Hongming ; Dong, Zhao Yang ; Zhao, Jun Hua ; Meng, Ke ; Luo, Feng Ji ; Wong, Kit Po Abstract Publication: IEEE Transactions on Power Systems Pub Date: September 2016 DOI: 10.1109/TPWRS.2015.2496203 Bibcode: 2016ITPSy..31.3594Q