S. D. Loshkarev, “Calculating the number of solutions of a difference equation”, Diskr. Mat., 26:2 (2014), 42–57; Discrete Math. Appl., 24:5 (2014), 281–293
2012
2.
S. D. Loshkaryov, “Differential equations for hash functions from MDx-family”, Prikl. Diskr. Mat. Suppl., 2012, no. 5, 51–53