[Austern99] §5.4.1 •
[C++03] §23.1.1 •
[Josuttis99] §6.9 •
[Meyers01] §
1-2, §
13, §
16, §
23, §
25 •
[Musser01] §6.1 •
[Stroustrup00] §17.1, §17.6 •
[Sutter00] §
7, §
20 •
[Sutter02] §7