@misc{Krzyszkowska_Patrycja_The, author={Krzyszkowska Patrycja and Maciąg Artur and Walaszczyk Magdalena}, howpublished={online}, publisher={Wydaw. Politechniki Częstochowskiej}, language={eng}, type={czasopismo}, title={The usage of Trefftz functions and Picard’s iteration for solving differentproblems of a two-dimensional wave equation}, keywords={wave equation, Trefftz function, Picard's iteration}, }