Erhard Hexel On light graphs in the family of 4-connected planar graphs. [Citation Graph (0, 0)][DBLP] Discrete Mathematics, 2002, v:251, n:1-3, pp:103-107 [Journal]

Erhard Hexel On short paths through prescribed vertices of a graph. [Citation Graph (0, 0)][DBLP] Discrete Mathematics, 2007, v:307, n:7-8, pp:905-910 [Journal]

Erhard Hexel On Shelling Structures - Support and Sum. [Citation Graph (0, 0)][DBLP] Elektronische Informationsverarbeitung und Kybernetik, 1988, v:24, n:6, pp:293-305 [Journal]