def cc(self):
        """List of tuples of yearly number of citations
        for specified years."""
        _years = range(self._start, self._end+1)
        try:
            return list(zip(_years, [d.get('$') for d in self._citeInfoMatrix['cc']]))
        except AttributeError:  # No citations
            return list(zip(_years, [0]*len(_years)))
def cc ( self ) : _years = range ( self . _start , self . _end + 1 ) try : return list ( zip ( _years , [ d . get ( '$' ) for d in self . _citeInfoMatrix [ 'cc' ] ] ) ) except AttributeError : return list ( zip ( _years , [ 0 ] * len ( _years ) ) )
List of tuples of yearly number of citations
        for specified years.