TY - JOUR AU - Flores-Flores, Juan Pablo AU - Martinez-Guerra, Rafael TI - PI observer design for a class of nondifferentially flat systems JO - International Journal of Applied Mathematics and Computer Science PY - 2019 SP - 655 EP - 665 VL - 29 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IJAMCS_2019_29_4_a2/ LA - en ID - IJAMCS_2019_29_4_a2 ER -