\hspace{0.5cm}
\b{tabular}{|l@{\hspace{2.5cm}}r|}
Ada & [DoD82] \\
C++ & [St86] \\
Concurrent C & [Ts84] \\
Concurrent Prolog & [Sh86] \\
CSP & [Ho78] \\
Emerald & [Bl87] \\
Linda & [Ge86] \\
Occam & [In84] \\
Parlog & [CG86] \\
POOL & [Am87] \\
Smalltalk & [GR83] \\
\e{tabular}