Improving the recognition of pathological voice using the discriminant HLDA transformation. - Othman Lachhab; Joseph Di Martino; El Hassane Ibn Elhaj; Ahmed Hammouch (CIST, 2014)

Improved feature vectors using N-to-1 Gaussian MFCC transformation for automatic speech recognition system. - Othman Lachhab; El Hassan Ibn El Haj (ICMCS, 2016)

Reconnaissance Statistique de la Parole Continue pour Voix Laryngée et Alaryngée. (Statistical speech recognition for laryngeal and alaryngeal voice). - Othman Lachhab (2017)