1. Brandstätter, N., Lange, T., Winterhof, A.: On the non-linearity and sparsity of Boolean functions related to the discrete logarithm in finite fields of characteristic two. In: Coding and Cryptography. Lect. Notes Comput. Sci., vol. 3969, pp. 135–143. Springer, Berlin (2006)
2. Carlet, C.: Boolean functions for cryptography and error correcting codes. In: Crama, Y., Hammer, P.L. (eds.) Boolean Models and Methods in Mathematics, Computer Science, and Engineering, pp. 257–397. Cambridge University Press (2010)
3. Carlet, C., Helleseth, T.: Sequences, Boolean functions, and cryptography. In: Boztas, S., et al. (eds.) CRC Handbook of Sequences, Codes and Applications. Chapman and Hall/CRC Press (to appear)
4. Chen, Z., Ostafe, A., Winterhof, A.: Structure of pseudorandom numbers derived from Fermat quotients. In: Hasan, M.A., Helleseth, T. (eds.) WAIFI 2010. Lect. Notes Comput. Sci. vol. 6087, pp. 73–85. Springer, Berlin (2010)
5. Ernvall, R., Metsänkylä, T.: On the p-divisibility of Fermat quotients. Math. Comput. 66(219), 1353–1365 (1997)