Can someone help me correct the error below:

ground gnd;

I have "illegal ground node 'gnd' " error with the above statement?  I read from Ken's paper, PLLnoise.pdf, that "this ground statement is not currently supported in Cadence's Verilog-A implementation, so instead ground should be explicitly passed into the model through a terminal. "

How do I do that???   Help please?!?

ppm