on Powers of M-trapezoid Graphs. - Carsten Flotow (Discret. Appl. Math., 1995)

On Powers of Circular Arc Graphs and Proper Circular Arc Graphs. - Carsten Flotow (Discret. Appl. Math., 1996)

On covering all cliques of a chordal graph. - Thomas Andreae; Carsten Flotow (Discret. Math., 1996)

Graphs whose powers are chordal and graphs whose powers are interval graphs. - Carsten Flotow (J. Graph Theory, 1997)