Fig. 8From: 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)Both images were taken in 1993 [3]Paint underlayers oozing through cracks in the upper layer observed in Mondrian’s a Composition C, 1920 (MoMA access. # 257.1948, CR nr. B107 [1]) b Composition with red, blue, black, yellow, and gray (MoMA access. # 154.1957, CR B132 [1])Back to article page