old_contents: from django.http import HttpResponse
  
  from .DblpHarvesterProcess import DblpHarvesterProcess
  from .CiteseerxHarvesterProcess import CiteseerxHarvesterProcess
  from .ArxivHarvesterProcess import ArxivHarvesterProcess
  
  
  def citeseerx_index(request):
      process = CiteseerxHarvesterProcess()
      process.harvest()
      return HttpResponse('Start CiteseerxHarvester process')
  
  
  def dblp_index(request):
      process = DblpHarvesterProcess()
      process.harvest()
      return HttpResponse('Start DblpHarvester process')
  
  
  def arxiv_index(request):
      process = ArxivHarvesterProcess()
      process.harvest()
      return HttpResponse('Start ArxivHarvester process')
  
new_contents: from django.http import HttpResponse
  
  from .DblpHarvesterProcess import DblpHarvesterProcess
  from .CiteseerxHarvesterProcess import CiteseerxHarvesterProcess
  from .ArxivHarvesterProcess import ArxivHarvesterProcess
  
  
  def citeseerx_index(request):
      process = CiteseerxHarvesterProcess()
      process.harvest(limit=request.GET.get('limit', None))
      return HttpResponse('Start CiteseerxHarvester process')
  
  
  def dblp_index(request):
      process = DblpHarvesterProcess()
      process.harvest(limit=request.GET.get('limit', None))
      return HttpResponse('Start DblpHarvester process')
  
  
  def arxiv_index(request):
      process = ArxivHarvesterProcess()
      process.harvest(limit=request.GET.get('limit', None))
      return HttpResponse('Start ArxivHarvester process')
  
subject: add limit param