Bomba, Andriy, and Igor Moroz. 2021. “Prediction of the Charge Carriers Stationary Distribution in the Active Region of the P-I-N Structures by the Perturbation Theory Methods”. Bulletin of V.N. Karazin Kharkiv National University, Series «Mathematical Modeling. Information Technology. Automated Control Systems» 50 (June), 27-36. https://doi.org/10.26565/2304-6201-2021-50-03.