W. Balser

发表

A. Tovbis, W. Balser, 1993 .

D. Lutz, W. Jurkat, W. Balser, 1980, Proceedings of the Edinburgh Mathematical Society.

Vladimir P. Kostov, Werner Balser, V. Kostov, 2003, Appl. Math. Comput..

W. Jurkat, A. Peyerimhoff, W. Balser, 1978, Canadian Journal of Mathematics.