Open J. Optim. Vol.8 No.3, September 25, 2019 DOI:10.4236/ojop.2019.83009
Open J. Optim. Vol.8 No.3, September 09, 2019 DOI:10.4236/ojop.2019.83008
Open J. Optim. Vol.8 No.3, September 04, 2019 DOI:10.4236/ojop.2019.83007
Open J. Optim. [ISSUE], [PUBDATE] DOI:[DOI]