Analysis of information sources in references of the Wikipedia article "I Know...Brad" in English language version.
His paintings looked, at first glance as mechanically fashioned as their source material, although it is evident in a painting such as I Know How You Must Feel, Brad (1963) that the idea of art as an emotionally expressive activity is being ironically considered..
...the three outstanding successes: I Know…Brad, Hopeless and Drowning Girl, in which we recognize an unmistakeable acknowledgement to the flamboyant linearism of Art Nouveau.