Rudolf Heuer, Hans Irschik,
"A Boundary Element Method for Eigenvalue Problems of Polygonal Membranes and Plates."
, in Acta Mechanica, Vol. 66, Seite(n) 9-20, 1987, ISSN: 0001-5970
Original Titel:
A Boundary Element Method for Eigenvalue Problems of Polygonal Membranes and Plates.