TY - JOUR AU - V. A. Arkad'ev AU - A. K. Pogrebkov AU - M. K. Polivanov TI - Expansions with respect to squares, symplectic and poisson structures associated with the Sturm--Liouville problem.~II JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1988 SP - 170 EP - 186 VL - 75 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1988_75_2_a1/ LA - ru ID - TMF_1988_75_2_a1 ER -