%0 Journal Article %T A portfolio selection model based on the knapsack problem under uncertainty %A Ahmad Makui %A Fereshteh Vaezi %A Seyed Jafar Sadjadi %J Archive of "PLoS ONE". %D 2019 %R 10.1371/journal.pone.0213652 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6493714/