Here we compare several test results of the present computations
againts previous works of other authors. It appears that our
results are compatible although there are minor differences.
Sometimes it is somewhat difficult to find out exact values of
parameters that should be used.
First we repeated computations of Laor (1991)
(see Figure 1).
We found our line profiles identical in shape. The exact
normalization seems to be somewhat uncertain especially for
pole-on view.
Another comparison concerns with our results versus
Kojima (1991)
(see Figure 2 below).