Authors
Iulian Cornel Lolea
Bucharest University of Economic Studies, Bucharest, Romania
Simona Stamule
Technical University of Civil Engineering of Bucharest, Bucharest, Romania
© 2021 Iulian Cornel Lolea, Simona Stamule, published by Society for Business Excellence
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.