Carbon and oxygen isotope ratios in starburst galaxies: New data from NGC 253 and Mrk 231 and their implications
C. Henkel, H. Asiri, Y. Ao, S. Aalto, A. L. R. Danielson, P. P. Papadopoulos, S. García-Burillo, R. Aladro, C. M. V. Impellizzeri, R. Mauersberger, S. Martín and N. Harada
