International
Tables for Crystallography Volume B Reciprocal space Edited by U. Shmueli © International Union of Crystallography 2010 
International Tables for Crystallography (2010). Vol. B, ch. 2.5, p. 322
Figure 2.5.3.10
M. Tanaka^{f}


Figure 2.5.3.10
Illustration of the production of dynamical extinction lines in kinematically forbidden reflections due to a bglide plane and a 2_{1} screw axis. (a) Umweganregung paths a, b and c. (b) Dynamical extinction lines A are formed in forbidden reflections 0k0 (k = odd). Extinction line B perpendicular to the lines A is formed in the exactly excited 010 reflection. 