Littérature
- Flack Martin. Medical problems of flying. Medical Research Council, 93, Special report, séries n° 53
- Hutchinson Thon. Todd' Encyclopaedia
- Arnold Friedrich. Ueber die Athmungs-grosse des Menschen. Heidelberg 1855, (Bibliographie contemporaine complète)
- Dreyer G. The assessment of physical fitness. Cassel
- Hill Leonard, Flack Martin. Journ. of Physiology 1908; XXXVII: 104