  Gurevich, Pyatov and Saponov recently stated an expansion for the product of
two Schur functions and gave a proof based on the Pluecker relations. Here we
show that this identity is in fact a special case of a quite general Schur
function identity, which was stated and proved in a paper by Fulmek and Kleber,
where it was used to prove bijectively Dodgsons condensation formula and the
Pluecker relations, but was not paid further attention: So we take the
opportunity to make obvious the range of applicability of this identity by
giving concrete examples, accompanied by many graphical illustrations.
