LÖRELIUS L.-E., LÖFROTH P.-O., WIKLUND L., MÖRLIN C., and ÅBERG H. “Influence of Sympathetic Nerve Activity on Renal Haemodynamics and Release of Renin: A Preliminary Communication”. Upsala Journal of Medical Sciences, vol. 81, no. 2, June 1976, pp. 109-11, doi:10.3109/03009737609179031.