A Comparative Study of Rotor Flux Estimation in Induction Motor with a Linear Parameter Varying Observer and Kalman Filter - I. Benlaloui; S. Drid; L. Chrifi Alaoui; D. Benoudjit; D. Khamari; M. Ouriagli (5th international conference on Sciences and Techniques of Automatic control & computer engineering - STA'2014, 2014)