These are located at Gelsenkirchen - Buer Nord station , at the Marl CWH connecting point .
At Haltern am See station ( until 1986 at Marl Lippe junction ) .
These are located at Gelsenkirchen - Buer Nord station , at the Marl CWH connecting point and at Haltern am See station ( until 1986 at Marl Lippe junction ) .