Daniela I. Borissova and Ivan C. Mustakerov, An Algorithm for an Optimal Staffing Problem in Open Shop Environment. journal = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology. April 2013, vol. 76(4). 856 - 860 [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/1149.