2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/57991The dressing chain equations for the second order Sturm-Liouville differential operators is integrated. The simplest closure at the third step is linked to the spectral curve of the genus 1 and the explicit solution in elliptic Weierstrass functions is given. Dependence on integrals that enter the bihamiltonian structure is specified.4 pages, XXXII Torun simposium on mathematical physics, 2002Mathematical Physics58F07text