Deprecated: Using ${var} in strings is deprecated, use {$var} instead in /home/conscientiabeam/archive.conscientiabeam.com/plugins/generic/citationStyleLanguage/lib/vendor/seboettg/citeproc-php/src/StyleSheet.php on line 52
1.
R&D investment: A dynamic efficiency approach in the EU countries . 29 [Internet]. 2024 Aug. 13 [cited 2026 Aug. 24];11(3):221-3. Available from: https://archive.conscientiabeam.com/index.php/29/article/view/3865