An - observation of the Lagoon Nebula and the very young open cluster NGC 6530G. Rauw, Y. Nazé, E. Gosset, I. R. Stevens, R. Blomme, M. F. Corcoran, J. M. Pittard and M. C. RunacresA&A, 395 2 (2002) 499-513DOI: https://doi.org/10.1051/0004-6361:20021230