[1][Booch, 1991]
2This table is found on page 76 of [Jacobson, 1992].
3[Lorenz, 1993]
[4][Jones, 1984]
[5]Dan McNicholl in [Booch, 1987]
[6]Christine Youngblut in [Berard, 1993]
7[Lorenz, 1993]