Hajdas, I; Michczynski, A; Bonani, G; Wacker, L; Furrer, H (2009). Dating bones near the limit of the radiocarbon dating method: study case mammoth from Niederweningen, ZH Switzerland. Radiocarbon, 51(2):675-680.
Hajdas, I; Schlumpf, N; Minikus-Stary, N; Hagedorn, F; Eckmeier, E; Schoch, W; Burga, C A; Bonani, G; Schmidt, M W I; Cherubini, P (2007). Radiocarbon ages of soil charcoals from the southern Alps, Ticino, Switzerland. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 259(1):398-402.