Vikas K. Sangal Vineet Kumar Indra Mani Mishra Optimization of structural and operational variables for the energy efficiency of a divided wall distillation column. 33-40 2012 40 Computers & Chemical Engineering http://dx.doi.org/10.1016/j.compchemeng.2012.01.015 db/journals/cce/cce40.html#SangalKM12