Table 4: 3-D substructure indicators for the sample of 104 objects with quality flag = 1 in the velocity range 25 400 $\div$ 30 400 km s^-1.
Indicator Value Significance

$\Delta$ 109.284 0.680

$\epsilon$ ${0.991}{\times}{10}^{+27}~{\rm kg}$ 0.353

$\alpha$ 0.129 h₇₅^-1 Mpc 0.914

**Table 4:** 3-D substructure indicators for the sample of 104 objects with quality flag = 1 in the velocity range 25 400 $\div$ 30 400 km s^-1.
Indicator	Value	Significance
$\Delta$	109.284	0.680
$\epsilon$	${0.991}{\times}{10}^{+27}~{\rm kg}$	0.353
$\alpha$	0.129 h₇₅^-1 Mpc	0.914

Source LaTeX | All tables | In the text

	1 Introduction
	2 The data
	3 Cluster membership
	4 Colour properties and spatial morphology of A3921
	5 Cluster kinematics
	6 Dynamical study of the system
	7 Spectral properties of the cluster members
	8 Discussion and conclusions
	Appendix A: Red sequence identification
	References