1. Asaeda, M., Frohman, C.: A note on the Bar-Natan skein module. Int. J. Math. 18, 1225–1243 (2007). Preprint arXiv:math/0602262
2. Asaeda, M.M., Przytycki, J.H., Sikora, A.S.: Categorification of the Kauffman bracket skein module of I—bundles over surfaces. Algebra Geom. Topol. 4, 1177–1210 (2004). Preprint arXiv:math/0409414
3. Auroux, D., Grigsby, J.E., Wehrli, S.M.: Sutured Khovanov homology, Hochschild homology, and the Ozsváth–Szabó spectral sequence. Trans. Am. Math. Soc. 367, 7103–7131 (2015). Preprint arXiv:1303.1986
4. Bar-Natan, D.: Khovanov homology for tangles and cobordisms. Geom. Topol. 9, 1443–1499 (2005). Preprint arXiv:math/0410495
5. Bar-Natan, D.: Fast Khovanov homology. J. Knot Theory Ramif. 16, 243–256 (2007). Preprint arXiv:math/0606318