1 Subjects: “...Investment & securities / bicssc...”

2 Subjects: “...BUSINESS & ECONOMICS / Investments & Securities / General...”

3 Subjects: “...Electronic trading of securities / http://id.loc.gov/authorities/subjects/sh96010672...”

4 Subjects: “...Computer security / Management...”

5 Subjects: “...POLITICAL SCIENCE / Public Policy / Social Security...”

6 Subjects: “...Foreign Security Policy...”

7 Subjects: “...POLITICAL SCIENCE / Security (National & International)...”

8 Subjects: “...Computer networks / Security measures / http://id.loc.gov/authorities/subjects/sh94001277...”

9 Subjects: “...Security...”

10 Subjects: “...Security...”

11 Subjects: “...National security / Spain...”

12 Subjects: “...Computer security / Law and legislation / fast...”

13 Subjects: “...Investment and Securities...”

14 Subjects: “...Security...”