On set colorings of complete bipartite graphs. - Steffen Grüter; Andreas Holtkamp; Michel Surmacs (Australas. J Comb., 2011)

Restricted arc-connectivity of bipartite tournaments. - Steffen Grüter; Yubao Guo; Andreas Holtkamp (Discret. Appl. Math., 2013)

Restricted arc-connectivity in tournaments. - Steffen Grüter; Yubao Guo; Andreas Holtkamp; Eduard Ulmer (Discret. Appl. Math., 2013)