Mohammad Modarres and  Shirin Aslani,  Joint Optimization of Pricing and Advertisement for Seasonal Branded Products.   journal   = {International Journal of Industrial and Manufacturing Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2010, vol. 47(11). 1156 - 1162
    [viewed 01 October 2020]. Available from: https://publications.waset.org/pdf/7832.