Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Bergen Commuter Rail:

"

NSB operates on half-hour headways from Bergen to Arna, through the Ulriken Tunnel, the only way under the Ulriken mountain. There are further 16 departures each way to Voss, of which six stop only at Arna and Dale before Voss, not allowing trips Bergen-Arna/Bergen-Dale, while ten stop at all stations, giving three services per direction and hour between Bergen and Arna. Three services continue from Voss to Myrdal.