International
Tables for
Crystallography
Volume B
Reciprocal space
Edited by U. Shmueli

International Tables for Crystallography (2006). Vol. B. ch. 2.5, p. 287   | 1 | 2 |

Figure 2.5.3.2 

P. Goodmanb
[Figure 2.5.3.2]
Figure 2.5.3.2

Diagrammatic representation of a CBED disc with symmetry lines m, mR (alternate labels G, S) and the central point [{\bf K}_{g} = 0].