1978
<div class="group-fields field-group-div"><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>Article by Paul Groot on three exhibitions with Constant's work in Amsterdam in 1978: <em>Aquarellen en tekeningen</em> at Galerie d'Art, <em>Schilderijen 1969-77</em> at Stedelijk Museum and <em>Constant | Grafiek</em> at Prin