1. Ara, P., Moreno, M.A., Pardo, E.: Nonstable $$K$$ K -theory for graph algebras. Algebra Represent. Theory 10(2), 157–178 (2007). doi: 10.1007/s10468-006-9044-z
2. Bates, T., Hong, J.H., Raeburn, I., Szymański, W.: The ideal structure of the $$C^*$$ C ∗ -algebras of infinite graphs. Ill. J. Math. 46(4), 1159–1176 (2002). http://projecteuclid.org/euclid.ijm/1258138472
3. Bates, T., Pask, D.: Flow equivalence of graph algebras. Ergodic Theory Dyn. Syst. 24(2), 367–382 (2004). doi: 10.1017/S0143385703000348
4. Bentmann, R.: Cuntz splice invariance for purely infinite graph algebras. Math. Scand. (to appear). arXiv: 1510.06757v2
5. Bentmann, R., Meyer, R.: A more general method to classify up to equivariant KK-equivalence. Documenta Math. 22, 423–454 (2017)