1. Caenepeel, S. and Van Oystaeyen, F. Brauer Groups and the Cohomology of Graded Rings. Monographs and Textbooks in Pure and Applied Mathematics, vol. 121. Marcel Dekker, Inc., New York, 1988.
2. Cohen, M. and Montgomery, S. Group-graded rings, smash products and group actions. Trans. Amer. Math. Soc., 1984, 282(1), 237–258.
doi:10.2307/1999586
3. Fisher, J. W. and Montgomery, S. Semiprime skew group rings. J. Algebra, 1978, 52(1), 241–247.
doi:10.1016/0021-8693(78)90272-7
4. Higgins, P. J. Notes on Categories and Groupoids. Van Nostrand, 1971.
5. Irving, R. S. Prime ideals of Ore extensions over commutative rings. J. Algebra, 1979, 56(2), 315–342.
doi:10.1016/0021-8693(79)90341-7
6. Irving, R. S. Prime ideals of Ore extensions over commutative rings II. J. Algebra, 1979, 58(2), 399–423.
doi:10.1016/0021-8693(79)90169-8
7. Karpilovsky, G. The Algebraic Structure of Crossed Products. North-Holland Mathematics Studies, vol. 142. Notas de Matemįtica, vol. 118. North-Holland, Amsterdam, 1987.
8. Kelarev, A. V. Ring Constructions and Applications. Series in Algebra, vol. 9. World Scientific Publishing Co., 2002.
9. Launois, S., Lenagan, T. H., and Rigal, L. Quantum unique factorisation domains. J. London Math. Soc. (2), 2006, 74(2), 321–340.
10. Lorenz, M. and Passman, D. S. Prime ideals in crossed products of finite groups. Israel J. Math., 1979, 33(2), 89–132.
doi:10.1007/BF02760553
11. Lorenz, M. and Passman, D. S. Addendum – Prime ideals in crossed products of finite groups. Israel J. Math., 1980, 35(4), 311–322.
doi:10.1007/BF02760656
12. Lundström, P. Crossed product algebras defined by separable extensions. J. Algebra, 2005, 283, 723–737.
doi:10.1016/j.jalgebra.2004.09.007
13. Lundström, P. Separable groupoid rings. Comm. Algebra, 2006, 34, 3029–3041.
doi:10.1080/00927870600639906
14. Lundström, P. Strongly groupoid graded rings and cohomology. Colloq. Math., 2006, 106, 1–13.
doi:10.4064/cm106-1-1
15. Mac Lane, S. Categories for the Working Mathematician. Graduate Texts in Mathematics, vol. 5. Springer-Verlag, New York, 1998.
16. Montgomery, S. and Passman, D. S. Crossed products over prime rings. Israel J. Math., 1978, 31(3–4), 224–256.
doi:10.1007/BF02761494
17. Nǎstǎsescu, C. and Van Oystaeyen, F. Graded Ring Theory. North-Holland Publishing Co., Amsterdam–New York, 1982.
18. Öinert, J. and Silvestrov, S. D. Commutativity and ideals in algebraic crossed products. J. Gen. Lie T. Appl., 2008, 2(4), 287–302.
doi:10.4303/jglta/S070404
19. Öinert, J. and Silvestrov, S. D. On a correspondence between ideals and commutativity in algebraic crossed products. J. Gen. Lie T. Appl., 2008, 2(3), 216–220.
20. Öinert, J. and Silvestrov, S. D. Crossed product-like and pre-crystalline graded rings. In Generalized Lie Theory in Mathematics, Physics and Beyond (Silvestrov, S., Paal, E., Abramov, V., and Stolin, A., eds). Springer-Verlag, Berlin, Heidelberg, 2009, 281–296.
doi:10.1007/978-3-540-85332-9_24
21. Öinert, J. and Silvestrov, S. Commutativity and ideals in pre-crystalline graded rings. Acta Appl. Math., 2009, 108(3), 603–615.
doi:10.1007/s10440-009-9434-4
22. Öinert, J., Silvestrov, S. D., Theohari-Apostolidi, T., and Vavatsoulas, H. Commutativity and ideals in strongly graded rings. Acta Appl. Math., 2009, 108(3), 585–602.
doi:10.1007/s10440-009-9435-3