1. [1] A. Andersson, Operator deformations in quantum measurement theory, Lett. Math. Phys. 104 (2014), 415–430.
2. [2] A. Andersson, Electromagnetism in terms of quantum measurements, J. Math. Phys. 57 (2016), no. 122104.
3. [3] A. Andersson, The noncommutative Gohberg–Krein theory, Ph.D. dissertation, University of Wollongong, Wollongong, Australia, 2015.
4. [4] M. F. Atiyah, Bott periodicity and the index of elliptic operators, Quart. J. Math. Oxford Ser. (2) 19 (1968), 113–140.
5. [5] M. F. Atiyah, $K$-Theory, 2nd ed., Advanced Book Classics, Addison-Wesley, Redwood City, Calif., 1989.