sentences:  Moreover, there was no attempt at lateral control.The connection between lateral and directional control was the key discovery of the Wright Brothers, and although their 1901 glider lacked a rudder the use of wing warping was clearly described in the paper by Wilbur Wright.Ferber's experiments with this aircraft were encouraging, and an account of his work written by Ferber under his pseudonym "de Rue" was published in the February 1903 issue of "l'Aérophile".