1. Physical working capacity of Swedish Air Force Pilots;Döbeln;Aviation Med,1959
2. Spirometric studies of ventilatory capacity in elderly people;Ericsson;Acta med scand.,1969
3. Effect of five years' ageing on ventilatory capacity and physical work capacity in elderly people;Ericsson;Acta med. scand.,1969
4. Ericsson , P. Irnell , L.
5. Stockholms stads hälsoundersökning 1954. III. Vilo-ekg., arbetsekg. och fysisk arbetsförmåga;Frisk;Nord. Med.,1957