1. Ananyevskiy A.: The special linear version of the projective bundle theorem. Compos. Math. 151(3), 461–501 (2015)
2. Ananyevskiy, A., Levine, M., Panin, I.: Witt sheaves and the η-inverted sphere spectrum. arXiv:1504.04860
3. Andrews, M., Miller, H.: Inverting the Hopf map. http://www-math.mit.edu/~hrm/papers/andrews-miller-jun14
4. Balmer P.: Derived Witt groups of a scheme. J. Pure Appl. Algebra 141, 101–129 (1999)
5. Barge J, Morel F.: Groupes de Chow des cycles orientés et classes d’Euler des fibrés vectoriels. C. R. Math. Acad. Sci. 330, 287–290 (2000)