diff --git a/vbn.md b/vbn.md
index 30cc568..b17600e 100644
--- a/vbn.md
+++ b/vbn.md
@@ -1,12 +1,12 @@
 # OTP setup for VBN
-* Download GTFS [data](vbn.gtfs.zip) from connect Fahrplanauskunft GmbH
+* Download GTFS [data](vbn.gtfs.zip) from Connect-Fahrplanauskunft GmbH
 * Download osm map data from [geofabrik](lower-saxony.osm.pbf.ln)
 * Get bounding box for VBN from https://boundingbox.klokantech.com/
  * csv:7.6966,52.4508,9.6501,53.8503
-* Extract VBN map data using the tool `osmconvert` creating the [file](vbn.pbf)
+* Extract VBN map data using the tool `osmconvert` creating the [file](vbn.osm.pbf)
  * `cd ~/vbn/otp/`
- * `osmconvert ???.osm.pbf.ln -b=??? --complete-ways -o=vbn.pbf`
- * The output file is called `vbn.pbf`
+ * `osmconvert lower-saxony.osm.pbf.ln -b=7.6966,52.4508,9.6501,53.8503 --complete-ways -o=vbn.osm.pbf`
+ * The output file is called `vbn.osm.pbf`
 * Build a street graph with OSM and elevation data only (ignoring transit input files)
  * `java -Xmx2G -jar otp.jar --buildStreet .`
  * The output file is called `streetGraph.obj`