In 1949 Radó and Reichelderfer announced in their paper On n-dimensional concepts of bounded variation, absolute continuity, and generalized Jacobian their intention to:
Sa 1949 Radó at Reichelderfer inihayag sa kani-kanilang mga papel Sa n-dimensional konsepto ng bounded ng pagkakaiba-iba, absolute-tigil, at pangkalahatan Jacobian kanilang mga layunin sa: