1. Principles associated with the use of high speed rotary instruments;Doerr;Dent Clin N Amer March,1967
2. High speed techniques evaluated;Ingraham;Dental Times,1968
3. Principles associated with the use of high speed rotary instruments;Doerr;Dent Clin N Amer,1967
4. Clinical evaluation of devices and techniques for the removal of tooth structures, 58–103;Hartley;Randolph AFB, Texas, Air Univ, Sch Aviation Med, USAF,1959