1. Barfoed , P. 1953 Conjunctivas bakterieflora Thesis 72 76 Einar Munksgaard
2. The use of calcium soluble wool for the examination of cleansed eating utensils;Cain;Cand. J. Pub. Health,1953
3. Bacteriology of the eye, normal flora;Cason;Arch. Ophthal.,1954
4. Bacterial flora of the normal conjunctiva;Chang;Chin. Med. Jour.,1957