- tate.org.uk art/artworks/lichtenstein-brushstroke…
- tripadvisor.com Attraction_Review-g60824-…
- wikiart.org en/roy-lichtenstein/brushstroke-1965-0
- ebay.co.uk p/18047133121
- eclecticlight.co 2015/12/05/visible-brushstrokes-…
- liveauctioneers.com price-result/roy-lichtenstein…
- en.m.wikipedia.org Brushstrokes series
- gagosian.com news/museum-exhibitions/tetsuya-…
- en.rusmuseum.ru editions/catalogues-albums/2010/…