  The comments of Guseinov are critically analyzed. Contrary to his comments,
it is pointed out that our formula for two-center overlap integrals over Slater
type orbitals have been derived independently, not derived from the earlier
works of Guseinov by changing the summation indices. Therefore, our algorithm
is original, is not affected from possible instability problems and can be used
in large scale calculations without loss of significant figures. Meanwhile, it
should be stressed that his comment on the transformation of our formula into
his formula proves the correctness of our algorithm and therefore can be
regarded as a nice sound of science.
