[1] Greco L, IWANIEC T. New inequalities for the Jacobian [J]. Annales de l'institut Henri Poincaré 1994, 11(01). [2] IWANIEC T, SBORDONE C. On the integrability of the Jacobian under minimal hypothesis [J]. Archive for Rational Mechanics and Analysis 1992, 119. [3] IWANIEC T. Nonlinear commutators and acobians [J]. Journal of Fourier Analysis and Applications 1997. [4] LWANIEC T, VERDE A. A study of jacobians in Hardy - Orlicz spaces [J]. Proceedings of the Royal Society of Edinburgh Section A 1999, 129(03). [5] Iwaniec T., Onninen J.. H-1-estimates of Jacobians by subdeterminants [J]. Mathematische Annalen 2002, 2(2).