2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/14535We present the first results of the COP survey about the reality of the PDCS clusters, about their velocity dispersions and dynamic and about the periodicity of the structures along the line of sight.2 pages, 1 postscript figure, LateX paspconf, proc. of the 99 IGRAP cluster confAstrophysicstext