MadsenTh.HolmJ.JensenK. A. (1942). Studies of the Epidemiology of Tuberculosis in Denmark. Copenhagen: Einar Munksgaard.
2.
StybloK.SutherlandI. (1974). Epidemiological indices for planning, surveillance and evaluation of tuberculosis programmes. Bull. Un. int. Tuberc., 49, in press.
3.
World Health Statistics Report. (1972). 23, No. 8.
4.
World Health Statistics Report. (1972). 25, No. 1.