Stability and sensivity of Darboux transformation without parameter. Bueno, M.Isabel; Dopico, Froilán M. — 2004 ETNA. Electronic Transactions on Numerical Analysis [electronic only]
Continuous symmetrized Sobolev inner products of order N . II. Bueno, M.Isabel; Marcellán, Francisco; Sánchez-Ruiz, Jorge — 2006 ETNA. Electronic Transactions on Numerical Analysis [electronic only]