The superspace groups are given here as in the International Tables for Crystallography (1999), Volume C, Table 9.8.3.5. with double glide plane (symbol e) introduced according to latest notations of Volume A (2002).

The number labelling the superspace group is denoted by n.m, where n is the number attached to the three-dimensional basic space group and m numbers the various superspace groups having the same basic space group. The symbol of the basic space group, the symbol for the four-dimensional point group K_s the number of the four-dimensional Bravais class to which the superspace group belongs (see complete table of Bravais classes), and the superspace-group symbol are also given.

The superspace-group symbol is indicated in the short notation, i.e. for the basic group one uses the short symbol from Int.Tables, vol.A, and then the values of t are given for each of the generators in this symbol, unless all these values are zero. Then, instead of writing a number of zeros, one omits them all.

Please, note that the special reflection conditions due to non-primitive translations are given, for hklm if q^r=0 and for HKLm otherwise. Recall the HKLm are the indices with respect to a conventional basis a*_c , b*_c , c*_c , qⁱ as in Int.Tables, vol.C, Table 9.8.3.2(a). The reflection conditions due to centring translations are given in the same volume in Table 9.8.3.6.