| Alister 2.0 - Programmable Logic Controllers in Railway Interlocking Systems for Regional Lines of the DB Netze AG Recent countries visiting this post |  |
 | 6 | United States |
 | 4 | |
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| Alister 2.0 - Programmable Logic Controllers in Railway Interlocking Systems for Regional Lines of the DB Netze AG Recent countries visiting this post | |
| 6 | United States |
| 4 | |
| 1 | Germany |