It was a term Judd did not use and did not like "I don't think anyone's work is reductive, " he once said yet it was a convenient catchall for his varied oeuvre and for that of his colleagues, artists like Frank Stella, Carl Andre and Dan Flavin (Judd's longtime friend), whose work Judd displayed prominently at 101 Spring.
WSJ: Donald Judd's SoHo Haven