1. Gear JHS (1939) Complications of tick-bite fever -a survey of fifty cases. S Afr Med J 13:35–36
2. Gear JHS (1954) The rickettsial diseases of South Africa -a review of recent studies. S Afr J Clin Sci 5:158–175
3. Gear JHS (1969) Rickettsial vaccines. Br Med Bull 25:171–176
4. Gear JHS (1978) Tick-bite fever. S Afr J Hosp Med 4:45–49
5. Gear JHS, de Meillon B (1941) Hereditary transmission of the rickettsiae of tick-bite fever through the common dog tick Haemaphysalis leachi. S Afr Med J 15:389–392