 In the late 1960s the term Postminimalism was coined by Robert Pincus-Witten to describe minimalist derived art which had content and contextual overtones which minimalism rejected, and was applied to the work of Eva Hesse, Keith Sonnier, Richard Serra and new work by former minimalists Robert Smithson, Robert Morris, Bruce Nauman, Sol LeWitt, and Barry Le Va, and others.Minimalists like Donald Judd, Dan Flavin, Carl Andre, Agnes Martin, John McCracken and others continued to produce their late modernist paintings and sculpture for the remainder of their careers.Audio feedback and the use of tape loops, sound synthesis and computer generated compositions reflected a cybernetic awareness of information, systems and cycles.