KOPAČKA, J., GABRIEL, D., PLEŠEK, J., KOLMAN, R. Influence of mass lumping techniques on contact pressure oscillations in explicit contact-impact algorithm based on isogeometric analysis. In: SALUPERE, A., MAUGIN, G.A., eds. IUTAM Symposium on Complexity of Nonlinear Waves. Tallinn: Institute of Cybernetics at Tallinn University of Technology, 2014, s. 93-94. ISBN 978-9949-430-77-2. Available: http://www.ioc.ee/iutam2014/index.php?page=publications