中国标准化（英文版）2022，Vol.117Issue(5)：56,1.
ETSI simplifies ICT end-users' lives with a guide available in 19 European languages
ETSI simplifies ICT end-users' lives with a guide available in 19 European languages
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..ETSI simplifies ICT end-users' lives with a guide available in 19 European languages[J].中国标准化（英文版）,2022,117(5):56,1.
