Vollmer, Hartmut (ed.). In roten Schuhen tanzt die Sonne sich zu Tod: Lyrik expressionistischer Dichterinnen (Zürich: Arche, 1993)

Useful anthology, arranged by theme ('Krieg', 'Großstadt', 'Traum', 'Schmerz', 'Liebe'—one could, and perhaps should, question some of the editorial decisions), showing the variety within avant garde poetry of the early twentieth century.  Many of the poets featured (will add a complete list when I go to the library!) were also visual or performance artists.