| ∙ | writers, artists, directors, composers: e.g. Novalis, Freud, Goya, Hitchcock, Wagner |
| ∙ | literary texts, paintings, films, pieces of music: e.g. Ofterdingen, Capricho 43, Spellbound, Rheingold |
| ∙ | periods: e.g. 16th century, 20th century, etc. – or: Antiquity (Assyrian, Sumerian, Babylonian, Akkadian, Egypt, Greek, Roman, Christian, Jewish), Middle Ages, Renaissance, Baroque, Enlightenment, Romanticism (Weimarer Klassik, Restauration), Realism, Modernism (Turn of the century; Expressionism), Post-War, Contemporary |
| ∙ | countries, regions, languages: e.g. China; Latin America, Islamic, Africa; German (for publications on German-speaking countries, i.e. Austria, Germany, Switzerland) |
| ∙ | dream-types: e.g. nightmare, erotic, prophetic |
| ∙ | genres, media/arts: e.g. narrative, novel, epic poem, drama, poetry; visual arts, film, tv, music; dreambook; dream-discourse; dream-report |
| ∙ | disciplines: e.g. medicine, history, politics, philosophy, psychology |
| ∙ | types of publication: e.g. anthology; edited volume |
| ∙ | related subjects: e.g. night, sleep, insomnia, intoxication, madness |
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