The permutahedron of series-parallel posets. - Annelie von Arnim; Ulrich Faigle; Rainer Schrader (Discret. Appl. Math., 1990)

The permutahedron of N-sparse posets. - Annelie von Arnim; Rainer Schrader; Yaoguang Wang (Math. Program., 1996)

Facets of the Generalized Permutahedron of a Poset. - Annelie von Arnim; Andreas S. Schulz (Discret. Appl. Math., 1997)