Mačiulytė-Šniukienė, Alma, Mindaugas Butkus, and Marek Szarucki. “Infrastructure in the Framework of Production Functions: Evidence of EU Member States at the Regional Level”. Technological and Economic Development of Economy 28, no. 6 (November 30, 2022): 1897–1914. Accessed May 4, 2024. https://journals.vilniustech.lt/index.php/TEDE/article/view/18090.