1. ISO 12181-1:2011, Geometric Product Specifications. Roundness. Part 1: Vocabulary and Parameters of Roundness.
2. GOST 53442–2009, Basic Standards of Interchangeability. Geometric Characteristics of Parts. Tolerances of Form, Orientation, Location, and Wobble.
3. A. N. Avdulov, Inspection and Estimation of Roundness of Machine Parts, Izd. Standartov, Moscow (1974).
4. M. A. Palei and V. A. Chudov, “Capabilities of saddle-shaped devices in the inspection of diameters and deviation of form,” Izmer. Tekhn., No. 4, 20–21 (1972).
5. Ya. I. Binder, I. D. Gebel, A. I. Nefedov, et al., “A precision out-of-round gauge,” Izmer. Tekhn., No. 8, 25–27 (1999).