Newly discovered 'Van Gogh' drawings labelled imitations by museum

Row breaks out as Van Gogh Museum rebuts academic’s claims she has found dozens of sketchbook drawings by artistAn extraordinary row has broken out between the Van Gogh Museum in Amsterdam and an academic who claims to have found more than 60 drawings made by the artist at the height of his powers.Bogomila Welsh-Ovcharov, a professor at the University of Toronto in Canada, and her publishers called a press conference on Tuesday to unveil an accounts ledger that she said was used as a sketc