A new pick-type theorem on the hexagonal lattice. - Ren Ding; Krzysztof Kolodziejczyk; John R. Reay (Discret. Math., 1988)

Borsuk covering and planar sets with unique completion. - Krzysztof Kolodziejczyk (Discret. Math., 1993)

The boundary characteristic and the volume of lattice polyhedra. - Krzysztof Kolodziejczyk (Discret. Math., 1998)

Hex-triangles with One Interior H-point. - Krzysztof Kolodziejczyk (Ars Comb., 2004)

On Some Conjectures by Rabinowitz. - Krzysztof Kolodziejczyk; Daria Olszewska (Ars Comb., 2006)

On a convex operator for finite sets. - Branko Curgus; Krzysztof Kolodziejczyk (Discret. Appl. Math., 2007)

A proof of Coleman's conjecture. - Krzysztof Kolodziejczyk; Daria Olszewska (Discret. Math., 2007)

Realizable Quadruples for Hex-polygons - Combinatorics of honeycombs. - Krzysztof Kolodziejczyk (Graphs Comb., 2007)

On The First Unknown Value Of Two Functions For Convex Lattice v-Gons. - Krzysztof Kolodziejczyk; Daria Olszewska (Ars Comb., 2014)