1. Virchow, R.: Gesammelte Abhandlungen zur wissenschaftlichen Medicin, p. 500. Meidinger Sohn & Co., Frankfurt-am-Main, 1856.
2. Klotz, O.: Arteriosclerosis. Publications from the University of Pittsburgh, School of Medicine. 1911. As cited in Cowdry, E. V. (Ed.): Arteriosclerosis , p. 47, The Macmillan Co., New York, 1933 .
3. Connective Tissue Changes in Atherosclerosis
4. The regeneration of aortic endothelium
5. Further observations on the regeneration of aortic endothelium in the rabbit