Bi-objective mean–variance method based on Chebyshev inequality bounds for multi-objective stochastic problemsHannan Amoozad Mahdiraji, Seyed Hossein Razavi Hajiagha, Shide Sadat Hashemi and Edmundas Kazimieras ZavadskasRAIRO-Oper. Res., 52 4-5 (2018) 1201-1217DOI: https://doi.org/10.1051/ro/2018018