| Armin Kunz, A new catalogue of Friedrich's drawings and watercolours, in Burlington Magazine, 154, 2012 pp. 107-111
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| Margaret M. Doyle, A Friedrich for the National Gallery of Art, Washington, in Burlington Magazine, 148, 2006 pp. 109-112
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| Johannes Grave, Flusslandschaften mit Torbogen. Caspar David Friedrichs Anverwandlung eines Bildmotivs von Johann Alexander Thiele, in Roland Krischel (ed.), Wallraf-Richartz-Jahrbuch, Köln, 2005, pp 229-236
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| Reinhard Zimmermann, Das Geheimnis des Grabes und der Zukunft, Caspar David Friedrichs "Gedanken" in den Bilderpaaren, in Herausgegeben von den Staatlichen Museen zu Berlin, Jahrbuch der Berliner Museen, Berlin, 2000, pp 187-257
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Timothy Mitchell, Caspar David Friedrich's Der Watzmann: German Romantic Landscape Painting and Historical Geology, in Art Bulletin, 66, 1984 pp. 452-464
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| Colin J. Bailey, Another Drawing by Friedrich in the Ashmolean Museum, in Master Drawings, 21, 1983 pp. 172-174, 230
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| Timothy F. Mitchell, From Vedute to Vision: The Importance of Popular Imagery in Friedrich's Development of Romantic Landscape Painting, in Art Bulletin, 64, 1982 pp. 414-424
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| Colin J. Bailey, Six Drawings by Caspar David Friedrich in the Ashmolean Museum, in Master Drawings, 13, 1975 pp. 274-280, 326-330
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| Anna Maria Kesting, Ein Brief Caspar David Friedrichs an Luise Seidler, in Gert von der Osten (ed.), Wallraf-Richartz-Jahrbuch, Köln, 1969, pp 255-258
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