Weak king embeddings of oriented graphs. - Jan-Hendrik de Wiljes (Australas. J Comb., 2019)

Cycles in the Coprime Hypergraph of Integers. - Jan-Hendrik de Wiljes (Integers, 2019)

Peg solitaire on banana trees. - Jan-Hendrik de Wiljes; Martin Kreh (Bull. ICA, 2020)

Peg Solitaire on Cartesian Products of Graphs. - Martin Kreh; Jan-Hendrik de Wiljes (Graphs Comb., 2021)

Peg solitaire on corona products. - Martin Kreh; Jan-Hendrik de Wiljes (Bull. ICA, 2022)

Making graphs solvable in peg solitaire. - Jan-Hendrik de Wiljes; Martin Kreh (Electron. J. Graph Theory Appl., 2022)

LDP Polygons and the Number 12 Revisited. - Ulrike Bücking; Christian Haase; Karin Schaller; Jan-Hendrik de Wiljes (Electron. J. Comb., 2025)