@book {66074,
	title = {Cascade of Multi-MPPT high power photovoltaic plant - Nine levels NPC three phase inverter topology - controlled by eight carrier wave very low frequency PWM},
	year = {2015},
	month = {2015},
	author = {Aboub, Hania and Maamir, M. and Rabiaa Mechouma and Boubekeur Azoui}
}
