Club members has had some passing interest of the subject. 🙂
Robu, M., Wynn, J. G., Mirea, I. C., Petculescu, A., Kenesz, M., Puşcaş, C. M., Vlaicu, M., Trinkaus, E. & Constantin, S., 2018:
The diverse dietary profiles of MIS 3 cave bears from the Romanian Carpathians: insights from stable isotope (δ13C and δ15N) analysis.
–Palaeontology: Vol. 61, #2, pp. 209-219 [doi: 10.1111/pala.12338]