To What extent does the refugee crisis influence right wing extremism in modern Europe

Please try finding literature on the impacts of the refugee crisis on right wing extremism is Germany, France, Austria. Find literature that says yes higher influx of refugees of the years has resulted in higher electoral votes for the far right. Also find counter arguments that the refugee crisis and influx is only a modest factor and that there are other factors contributing to the increasing support for far right parties. Use mainly academic sources and look at previous studies. I am going to use this literature review for a research paper so please do a good job.