International
Tables for
Crystallography
Volume A
Space-group symmetry
Edited by M. I. Aroyo

International Tables for Crystallography (2015). Vol. A, ch. 1.4, p. 70

Figure 1.4.5.3 

B. Souvignierd
[Figure 1.4.5.3]
Figure 1.4.5.3

Symmetry-element diagram for the layer group [pm2_1n] (32).