American Institute of Physics, AIP Conference Proceedings
DOI: 10.1063/1.3141564
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The nature of the progenitor system[s] of Type Ia Supernovae is still unclear. In this contribution I review the projects that have been undertaken to answer this question and the results they have led to. The conclusion is that, as of today, we have reasonable guesses but none of them has yet been proven by direct observations.