the article on supersymmetric wilson loops does use product integrals in the sense relevant to this discussion it says on p that it has presented a supersymmetric generalization of ordinary product integral formalism his primary reference for product integrals is dollard and friedman product integrals addison wesley and it seems like a lot of the paper is extending their formalism to the supersymmetric case and that's fine but it doesn't answer the question of notability of grossman and katz's work he doesn't mention them once nor does he seem to use any of their ideas of course g k are strictly speaking off topic for this page this page is about multiplicative calculus in general not about their particular version of it