 Scientists working on complex evolving systems have pointed out that PNT recalls the ‘Long Waves’ of Kondratiev and Joseph Schumpeter ’ s view of waves of "creative destruction .
<fluency>  Scientists working on complex evolving systems have pointed out that PNT recalls the ‘Long Waves’ of Kondratiev and Joseph Schumpeter ’ s view of waves of "creative destruction .
 Scientists working on complex evolving systems have pointed out that PNT recalls the "Long Waves" of Kondratiev and Joseph Schumpeter ’ s view of waves of "creative destruction .