Calvi, J. - P., & Van Manh, P..  (2015).  On the approximation of multivariate entire functions by Lagrange interpolation polynomials. Dolomites Research Notes on Approximation, 8(Special_Issue), 11-16. presented at the 11/2015. doi:10.14658/pupj-drna-2015-Special_Issue-2

Van Manh, P.  (2011).  On the limit points of pseudo Leja sequences. Dolomites Research Notes on Approximation, 4(1), 1-7. presented at the 09/2011. doi:10.14658/pupj-drna-2011-1-1