BS ISO/IEC 27011:2016(2018) Information technology — Security techniques — Code of practice for Information security controls based on ISO / IEC 27002 for telecommunications organizations
2016BS ISO/IEC 27011:2016 Information technology. Security techniques. Code of practice for information security controls based on ISO/IEC 27002 for telecommunications organizations
2009BS ISO/IEC 27011:2008 Information technology - Security techniques - Information security management guidelines for telecommunications organizations based on ISO/IEC 27002