▁of ▁Tang , ▁vol . ▁ 9 9 . ▁ ▁Z iz hi ▁T ong j ian , ▁vol s . ▁ 2 0 6 , ▁ 2 0 7 . ▁ ▁Category : Ch an cell ors ▁under ▁Wu ▁Z et ian ▁Category : T ang ▁dynast y ▁gener als ▁at ▁war ▁against ▁the ▁Gö kt ür ks ▁Category : 7 th - century ▁birth s ▁Category : 8 th - century ▁death s <0x0A> </s> ▁W E ST bahn ▁Management ▁GmbH ▁( a ▁subs idi ary ▁of ▁RA IL ▁Hold ing ▁AG ) ▁is ▁an ▁open ▁access ▁railway ▁company ▁operating ▁express ▁train ▁services ▁on ▁Austria ' s ▁Western ▁Railway ▁( also ▁known ▁as ▁West bahn ) ▁since ▁ 1 1 ▁December ▁ 2 0 1 1 . ▁The ▁French ▁railway ▁company ▁SN CF ▁has ▁a ▁ 2 6 ▁percent ▁st ake ▁in ▁W E ST bahn . ▁ ▁Associ ated ▁company ▁W E ST bus , ▁became ▁part ▁of ▁the ▁F li x bus ▁network . ▁ ▁Services ▁ ▁W E ST bahn ▁oper ates ▁one ▁service ▁between ▁Vienna ▁and ▁Sal zburg ▁in ▁competition ▁to ▁the ▁government - owned ▁Ö BB . ▁The ▁trains ▁run ▁in ▁one - hour ▁intervals . ▁This ▁service ▁calls ▁at ▁Wien ▁West bahn hof , ▁Wien - H ütt eld orf , ▁St . ▁P öl ten ▁H bf , ▁Am st etten , ▁Lin z ▁H bf , ▁W els ▁H bf , ▁Att n ang - P uch heim ▁and ▁Sal zburg ▁H bf