technique de coulée
Erich Heckel was a German painter and printmaker, and a founding member of the group Die Brücke ("The Bridge") which existed 1905–1913. His work was part of the art competitions at the 1928 Summer Olympics and the 1932 Summer Olympics.
Sigmar Polke was a German painter and photographer.
Polke experimented with a wide range of styles, subject matters and materials. In the 1970s, he concentrated on photography, returning to paint in the 1980s, when he produced abstract works created by chance through chemical reactions between paint and other products. In the last 20 years of his life, he produced paintings focused on historical events and perceptions of them.
Karl Hofer was a German expressionist painter. He was director of the Berlin Academy of Fine Arts.
One of the most prominent painters of expressionism, he never was a member of one of the expressionist painting groups, like "Die Brücke", but was influenced by their painters. His work was among those considered degenerate art by the Nazis, but after World War II he regained recognition as one of the leading German painters.