Ikeogu, C., V. N. Ikeogu, and O. E. Chukwu. “Spatial and Temporal Dimensions of Container Traffic in Nigerian Seaports”. Journal of Sustainable Development of Transport and Logistics, vol. 6, no. 2, Nov. 2021, pp. 96-108, doi:10.14254/jsdtl.2021.6-2.6.