Structure of digraphs associated with quadratic congruences with composite moduli. - Lawrence Somer; Michal Krízek (Discret. Math., 2006)

On symmetric digraphs of the congruence xk = y (mod n). - Lawrence Somer; Michal Krízek (Discret. Math., 2009)

On the symmetric digraphs from the kth power mapping on finite commutative rings. - Guixin Deng; Lawrence Somer (Discret. Math. Algorithms Appl., 2015)

Primes in Shifted Sums of Lucas Sequences. - Lenny Jones; Lawrence Somer (Integers, 2017)

Nondefective Integers With Respect to Certain Lucas Sequences of the Second Kind. - Lawrence Somer; Michal Krízek (Integers, 2018)

Regular Tessellations of Maximally Symmetric Hyperbolic Manifolds. - Jan Brandts; Michal Krízek; Lawrence Somer (Symmetry, 2024)