from The Art Newspaper
What happens when Flavin’s lights go out?
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In the case of Dan Flavin, the crucial role of the artist's estate as a "final authority" on the preservation the artworks becomes a potentially problematic one. Then again, it does point to an underlying universal that perhaps all preservation decisions are essentially subjective decisions, influenced by a host of factors such as context, material, condition and function.

Also see an earlier post pointing to a New York Times article which highlighted the divergent views between the artist, who saw his art as being temporary, and the collectors of his art.