International
Electrotechnical
Commission
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Area
Signalling and security apparatus for railways
/ Reliabilty, availability, maintainability and safety
IEV ref
821-12-61
en
software
See
IEV 171-01-21
fr
logiciel
, m
See
IEV 171-01-21
ar
برنامج التشغيل
de
Software, f
es
software
it
software
ko
소프트웨어
ja
ソフトウェア
pl
oprogramowanie, n
pt
software
zh
软件
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