| |
| 2002 | ||
|---|---|---|
| 2 | EE | Stefan Porubský, J. Schönheim: New necessary and sufficient conditions on (ai, mi) in order that x = ai (mod mi) be a covering system. Electronic Notes in Discrete Mathematics 11: 562-566 (2002) |
| 1982 | ||
| 1 | EE | Stefan Porubský: A characterization of finite unions of arithmetic sequences. Discrete Mathematics 38(1): 73-77 (1982) |
| 1 | J. Schönheim | [2] |