Article ISI
ASTROPHYSICAL JOURNAL  (2018)

On the Use of the Main-sequence Knee (Saddle) to Measure Globular Cluster Ages

Saracino, S.; Dalessandro, E.; Ferraro, F.R.; Lanzoni, B.; Origlia, L.; Salaris, M.; Pietrinferni, A.; Geisler, D.; Kalirai, J.S.; Correnti, M.; Cohen, R.E.; Mauro, F.; Villanova, S.; Moni Bidin, C.