Finite sections method for Hessenberg matrices. - Leonel Robert; Luis Santiago (J. Approx. Theory, 2003)

On a class of Sobolev scalar products in the polynomials. - Leonel Robert; Luis Santiago (J. Approx. Theory, 2003)

Figures of Constant Width on a Chessboard. - Janko Hernández; Leonel Robert (Am. Math. Mon., 2005)