Snyder, 70 and Chátelet, 16-18 and 191 - against Malouel's involvement are concise Grove, and it is not mentioned on the Louvre website. Chátelet, 16-18 discusses the issues most fully. He feels the St Denis painting would have been painted from the top of the image downwards, so the upper portions are by Malouel.
louvre.fr
Snyder, 70 and Chátelet, 16-18 and 191 - against Malouel's involvement are concise Grove, and it is not mentioned on the Louvre website. Chátelet, 16-18 discusses the issues most fully. He feels the St Denis painting would have been painted from the top of the image downwards, so the upper portions are by Malouel.