1. Art and Object. (2020, March 9). Jeff Koons reveals how Duchamp influenced his art [Video]. YouTube. https://www.youtube.com/watch?v=0-ic-9whf9M
2. Artmarket.com. (2021, November 9). Artmarket.com: Perfectly Positioned to Generate Enormous Revenue from Its NFT Marketplace on Artprice-nft.com. PR Newswire. https://www.prnewswire.com/news-releases/artmarketcom-perfectly-positioned-to-generate-enormous-revenue-from-its-nft-marketplace-on-artprice-nftcom-301420161.html