Links:
[1] http://maps.google.de/maps?f=l&hl=de&q=messe&near=rheinberg&layer=&ie=UTF8&z=14&ll=51.54089,6.578922&spn=0.030588,0.09407&om=1&iwloc=A
[2] https://www.google.de/maps/place/Messe+Niederrhein+GmbH/@51.54739,6.57435,17z/data=!3m1!4b1!4m2!3m1!1s0x47b899ae045342ab:0x63f00d290766dc5a