Crnjanski based Sumatraism under the influence of Expressionism and Futurism, introducing his vision of cosmic harmony. His concept included the most important topics of contemporary avant-garde art: primal force, the conflict between civilization and nature, and the hope for a new beginning.[2]
^Николић, Љиљана; Милић, Босиљка (January 2007) [1989]. "Речник књижевнотеоријских појмова". Читанка са књижевнотеоријским појмовима за III разред средње школе (in Serbian). Belgrade: Завод за уџбенике. p. 328. ISBN978-86-17-14339-6. Суматраизам је поетски, филозофски, животни став који је Милош Црњански прокламовао у свом песничком фесту Објашњење "Суматре" (СКГ, 1920).
^ abCornis-Pope, Marcel; Neubauer, John (2004). "Poeticizing prose in Croatian and Serbian Modernism". History of the literary cultures of East-Central Europe. Amsterdam/Philadelphia: John Benjamins. p. 412. ISBN90-272-3452-3. Influenced by Expressionism and Futurism, Crnjanski postulated already during World War I the principles of avant-garde program, for which he introduced the term Sumatraism in 1920. His concept covered the most important topoi of contemporary avant-garde art: primal force, the conflict between civilization and nature, and the hope for a new beginning. Sumatraism was based on a vision of cosmic harmony.