D. T. Nam, C. D. Manh, H. N. Nang, T. N. Thanh, H. N. Thanh, and L. N. Phi, “Exploiting Deep Reinforcement Learning for Coverage Maximization and Cost Minimization in Air Quality Monitoring Systems”, SSAD, vol. 32, no. 3, pp. 9–16, Sep. 2022.