1. H. Isaac, M.D. Jones, Lieut.-Colonel, U.S. Army: Equilibrium and Vertigo, J. B. Lippincott Company.
2. Sydney Scott: The Ear in Relation to Certain Disabilities in Flying, Medical Research Council Special Report Series (No. 37).
3. Osservazioni sull' esame vestibolare dei candidati all' aviazione e dei piloti, specialmente in riguardo al nistagmo;Bilancioni;Giornale di Medicina Militare,1919
4. The Labyrinthine Reactions of Experienced Aviators;Ranken;Brit. Med. Jour.,1920
5. The Incidence of Nose, Throat and Ear Disease among Aviation Candidates;Ranken;THE LANCET,1920