@article{LiermannHamannOskinova2009,
  author    = {Adriane Liermann and Wolf-Rainer Hamann and Lida Oskinova},
  title     = {The Quintuplet cluster : I. A K-band spectral catalog of stellar sources},
  doi       = {10.1051/0004-6361:200810371},
  url       = {http://www.aanda.org/},
  year      = {2009},
}