Benbourhim, M.-N., A. Bouhamidi, and P. Gonzalez-Casanova. “Convergence and Error Estimates for Pseudo-Polyharmonic Div-Curl and Elastic Interpolation on a Bounded Domain”. J. Numer. Anal. Approx. Theory, vol. 52, no. 1, July 2023, pp. 34-56, doi:10.33993/jnaat521-1306.