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In this paper, we address the problem of global asymptotic stabilization by output feedback for nonminimum phase nonlinear systems which admit a strict normal form. We assume the knowledge of an observer and, depending on its properties, we propose various approaches to design the control law. Each of these approaches needs a different stabilizability assumption on the inverse dynamics. In this way, within a unified framework, we recover and extend some already published results and we establish new ones.