[Drango]

I think you have it backwards...I’d rather see a statement around 1963, in her own words, not someone else’s, where she says it was a “study”.

[mnehring]

Without going so far as to pay for the article, it looks like something like you are describing may exist.

Art News from 1968 has a discussion with her about Matisse.

http://pqasb.pqarchiver.com/latimes/access/520905932.html?dids=520905932:520905932&FMT=ABS&FMTS=ABS:AI&type=historic&date=Jan+14%2C+1968&author=&pub=Los+Angeles+Times&desc=ART+NEWS&pqatl=google