1.
Kumar Singh M, Vásáry M, Baranyai Z. Economic sustainability and methodological evaluation of air asset. Studia Mundi – Economica [Internet]. 2014. december 12. [idézi 2025. december 5.];1(1):103-8. Elérhető: https://journal.uni-mate.hu/index.php/stm/article/view/3337