International Journal for Numerical Methods in Engineering (Internat. J. Numer. Methods Engrg.) (20170101), 110, no.~8, 776-800. ISSN: 0029-5981 (print).eISSN: 1097-0207.
International Journal for Numerical Methods in Engineering (Internat. J. Numer. Methods Engrg.) (20120101), 90, no.~1, 116-134. ISSN: 0029-5981 (print).eISSN: 1097-0207.
International Journal for Numerical Methods in Engineering (Internat. J. Numer. Methods Engrg.) (20110101), 88, no.~7, 693-714. ISSN: 0029-5981 (print).eISSN: 1097-0207.