Were Douchan Gersi and Serge de Poligny both authors?
Douchan Gersi Douchan Gersi (1947–2015) was a Slovak-born, Belgium-raised, Bali-based adventurer, documentary filmmaker, author and actor, producer/star with actor James Coburn of "Explore", a PBS mini-series. He is the author of numerous books including "Faces in the Smoke: An Eyewitness Experience of Voodoo, Shamanism, Psychic Healing, and Other Amazing Human Powers" and "Explorer".
Mathis der Maler (opera) Mathis der Maler ("Matthias the Painter") is an opera by Paul Hindemith. The opera's genesis lay in Hindemith's interest in the Reformation. The work's protagonist, Matthias Grünewald, was an actual historical figure who flourished in that era, and whose art, in particular the Isenheim Altarpiece, inspired many creative figures in the early 20th century, including Joris-Karl Huysmans's novel "Là-bas".