Mathematica - making labels appear by the curves

[ehrenfest]

hello, I want to plot a set of curves on the same graph, and I want to give each of the curves labels, i.e. (1),(2),...

Does anyone know how to make labels appear by the curves? Or is there another labelling scheme I can use?

 

[R.Harmon]

I found this in the wolfram library, looks quite a complicated way to do it but it seems to work, there might be a much simpler way but I don't know it: http://library.wolfram.com/infocenter/TechNotes/4116/