BŁACHOWSKI, Bartłomiej; HOŁOBUT, Paweł. In Memoriam – Professor Witold Gutkowski. Computer Assisted Methods in Engineering and Science, [S.l.], v. 27, n. 2–3, p. 93–95, june 2020. ISSN 2299-3649. Available at: <https://cames.ippt.pan.pl/index.php/cames/article/view/293>. Date accessed: 29 oct. 2020.