NGC 957

Number of measures per data source

	Reference  311 :   11 measures
	Reference  340 :    6 measures

References

 311
Liu T., Janes K.A., Bania T.M.
(1989) Astron. J. 98, 626
Radial-velocity measurements in 20 young open clusters
1989AJ.....98..626L
 340
Liu T., Janes K.A., Bania T.M.
(1991) Astron. J. 102, 1103
More radial-velocity measurements in young open clusters
1991AJ....102.1103L