1. Akam, M., Hox genes: From master genes to micromanagers, Curr. Biol., 1998, vol. 24, pp. 676–678.
2. Andres, F., Sarrazin, A.F., Peel, A.D., and Averof, M., A segmentation clock with two-segment periodicity in insects, Science, 2012, vol. 336, pp. 338–341.
3. Aulehla, A. and Pourquié, O., Signaling gradients during paraxial mesoderm development, Cold Spring Harb. Perspect. Biol. 2, 2010, p. a000869.
4. Baum, B., Left-right asymmetry: Actin-myosin through the looking glass, Curr. Biol., 2006, vol. 16, pp. R502–R504.
5. Beklemishev, V.N., Osnovy sravnitel’noi anatomii bespozvonochnykh (Fundamentals of Invertebrate Comparative Anatomy), vol. 1: Promorfologiya (Promorphology), Moscow: Nauka, 1964.