1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Mathematics and computers in simulation, 31 (1989) 4-5, S. 401 - 408
20
Journal of computational and applied mathematics, 26 (1989) 3, S. 311 - 325
OpenAccess  OpenAccess