1. Boyadjiev, B. and Boyadjiev, Chr., New Models of Industrial Column Chemical Reactors, Bulg. Chem. Comm., 2017 (in press).
2. Boyadjiev, B. and Boyadjiev, Chr., New Models of Industrial Column Absorbers, 1: Co-Current Absorption Processes, Bulg. Chem. Comm., 2017 (in press).
3. Boyadjiev, B. and Boyadjiev, Chr., NewModels of Industrial Column Absorbers, 2: Counter-Current Absorption Processes, Bulg. Chem. Comm., 2017 (in press).
4. Boyadjiev, Chr., Doichinova, M., Boyadjiev, B., and Popova-Krumova, P., Modeling of Column Apparatus Processes, Berlin: Springer-Verlag, 2016, p. 313.
5. Boyadjiev, Chr., Boyadjiev, B., Popova-Krumova, P., and Doichinova, M., An Innovative Approach for Adsorption Column Modeling, Chem. Eng. Technol., 2015, vol. 38, no. 4, pp. 675–682.