Fig. 3From: Piet Mondrian’s Broadway Boogie Woogie: non invasive analysis using macro X-ray fluorescence mapping (MA-XRF) and multivariate curve resolution-alternating least square (MCR-ALS)X-ray radiograph of Broadway Boogie Woogie showing the extent of Mondrian’s reworking of the painting including a portion of bars removed, b shifted edge, c crossed vertical and horizontal bar replaced by square and d widening of the bar Back to article page