Pignotti, L. Visual poetry, verbo-visual writing: Lambert Pignotti. Experimental - visual - concrete : Avant-Garde Poetry since the 1960s.(1996).

Pignotti, Lambert. "Visual Poetry, Verbo-visual Writing: Lambert Pignotti." Experimental - Visual - Concrete : Avant-Garde Poetry Since the 1960s.(1996) .

Pignotti, Lambert. "Visual Poetry, Verbo-visual Writing: Lambert Pignotti." Experimental - Visual - Concrete : Avant-Garde Poetry Since the 1960s.(1996), .