High-sensitivity maps of molecular ions in L1544 - I. Deuteration of N2H+ and HCO+ and primary evidence of N2D+ depletionE. Redaelli, L. Bizzocchi, P. Caselli, O. Sipilä, V. Lattanzi, B. M. Giuliano and S. SpezzanoA&A, 629 (2019) A15DOI: https://doi.org/10.1051/0004-6361/201935314
