Vastag, T. и Eisinger-Balassa, B. 2024. Introducing a Novel Method: Validating Overspending Measurements in Hungary. ENTRENOVA - ENTerprise REsearch InNOVAtion. 9, 1 (Јуни 2024), 232–243. DOI:https://doi.org/10.54820/entrenova-2023-0022.