@article{RSMUP_1996__96__237_0, author = {Shlapunov, A.}, title = {Spectral decomposition of {Green{\textquoteright}s} integrals and existence of $W^{s,2}$-solutions of matrix factorizations of the {Laplace} operator in a ball}, journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova}, pages = {237--256}, publisher = {Seminario Matematico of the University of Padua}, volume = {96}, year = {1996}, mrnumber = {1438300}, zbl = {0955.35017}, language = {en}, url = {http://www.numdam.org/item/RSMUP_1996__96__237_0/} }