PARK, Hanseok; CHOI, Hoo-Gon. Measurement of R&D efficiency in NT and BT fields using DEA:a case in Korea. International Journal of Engineering and Technology, [S. l.], v. 2, n. 3, p. 165–174, 2013. DOI: 10.14419/ijet.v2i3.999. Disponível em: https://mail.sciencepubco.com/index.php/IJET/article/view/999.. Acesso em: 18 aug. 2025.