Maximal Sets of 2-Factors in Complete Equipartite Graphs. - Arne Hoffmann; Bert Randerath; Lutz Volkmann (Electron. Notes Discret. Math., 1999)

Regular factors in regular multipartite graphs. - Arne Hoffmann (Electron. Notes Discret. Math., 2000)

Wiener index versus maximum degree in trees. - Miranca Fischermann; Arne Hoffmann; Dieter Rautenbach; László A. Székely; Lutz Volkmann (Discret. Appl. Math., 2002)

Minimum degree conditions for the Overfull Conjecture for odd order graphs. - Kerstin Bongard; Arne Hoffmann; Lutz Volkmann (Australas. J Comb., 2003)

Regular Factors in Connected Regular Graphs. - Arne Hoffmann (Ars Comb., 2003)

A Linear-programming Approach to the Generalized Randic Index. - Miranca Fischermann; Arne Hoffmann; Dieter Rautenbach; Lutz Volkmann (Discret. Appl. Math., 2003)

On Regular Factors in Regular Graphs with Small Radius. - Arne Hoffmann; Lutz Volkmann (Electron. J. Comb., 2004)

On unique k-factors and unique [1, k]-factors in graphs. - Arne Hoffmann; Lutz Volkmann (Discret. Math., 2004)

Structural Remarks on Bipartite Graphs with Unique f-Factors. - Arne Hoffmann; Lutz Volkmann (Graphs Comb., 2005)

Extremal bipartite graphs with a unique k-factor. - Arne Hoffmann; Elzbieta Sidorowicz; Lutz Volkmann (Discuss. Math. Graph Theory, 2006)