VanGoghletters.org: To Paul Gauguin. Arles, Wednesday, 3 October 1888. [dostęp 2011-03-14]. Cytat: I have an extraordinary fever for work these days, at present I'm grappling with a landscape with blue sky above an immense green, purple, yellow vine with black and orange shoots. Little figures of ladies with red sunshades, little figures of grape-pickers with their cart further liven it up. Foreground of grey sand. Once again square no. 30 canvas for the decoration of the house.(ang.).
vangoghletters.org: Letter from Vincent van Gogh to Theo van Gogh, Arles, 3 October 1888. [dostęp 2011-03-14]. Cytat: Ah — my study of the vineyards — I sweated blood and tears over it — but I have it — another square no. 30 canvas — once again for the decoration of the house.(ang.).