Interactive environment WebOptim for solving multiple-objective problems using scalarising and evolutionary approaches. - Leoneed M. Kirilov; Vassil Guliashki; Krassimira Genova; Peter Zhivkov; Boris Staykov; Daniel Vatov (Int. J. Reason. based Intell. Syst., 2015)

Optimization and Evaluation of Calibration for Low-cost Air Quality Sensors: Supervised and Unsupervised Machine Learning Models. - Petar Zhivkov (FedCSIS, 2021)

Quantitative Relationship Between Particulate Matter and Morbidity. - Petar Zhivkov; Alexandar Simidchiev (LSSC, 2021)

Development of Software Tool for Optimization and Evaluation of Cycling Routes by Characterizing Cyclist Exposure to Air Pollution. - Petar Zhivkov; Alexandar Simidchiev (FedCSIS (Communication Papers), 2022)

Software Tool for Optimizing Cycling Route by Defining Cyclist Air Pollution Exposure. - Petar Zhivkov; Alexandar Simidchiev (WCO, 2022)

Dynamic relationship between population densities and air quality in the four largest Norwegian cities. - Petar Zhivkov; Todor Kesarovski (FedCSIS, 2024)

Enhancing Liquidity and Stability in DeFi: USD-collateralized Leveraged Restaking with Stablecoins. - Petar Zhivkov (MDIS, 2024)