The outer envelopes of globular clusters - I. NGC 7089 (M2)
Citation
Kuzma, P, Da Costa, G, Mackey, D et al 2016, 'The outer envelopes of globular clusters - I. NGC 7089 (M2)', Monthly Notices of the Royal Astronomical Society, vol. 461, no. 4, pp. 3639-3652.