Good article on the attribution ..
 

Van Gogh? Van Gogh!
ARTinvestment.RU - 05.11.2008, 06:58
Van Gogh Museum in conjunction with the Netherlands Institute for Cultural Heritage and the company Shell has undertaken a study of two female portraits whose membership brush Van Gogh used to be in doubt. Based on the findings, the experts concluded that these pictures were actually carried out the great Dutch post-impressionist.
http://artinvestment.ru/news/artnews...portraits.html