@article{article, title = {{The VLT-FLAMES Tarantula Survey: XXV. Surface nitrogen abundances of O-type giants and supergiants}}, url = {{http://eprints.whiterose.ac.uk/122214/ }}, year = {{2017}}, month = {{4}}, author = {{Grin NJ and Ramírez-Agudelo OH and de Koter A and Sana H and Puls J and Brott I and Crowther PA and Dufton PL and Evans CJ and Gräfener G and Herrero A et al}}, doi = {{10.1051/0004-6361/201629225}}, volume = {{600}}, journal = {{Astronomy & Astrophysics}}, note = {{Accessed on 2024/12/23}}}