Columbia subject headings:
Four elements (Philosophy) in literature.
Frauenlob, -1318--Criticism and interpretation.
German literature--Middle High German, 1050-1500--History and criticism.
Hugo, von Trimberg, approximately 1230-approximately 1313. Renner.
Physics--Philosophy--History--To 1500.
Reinfried von Braunschweig.
Science, Medieval, in literature.
Thomasin, von Zerclaere, approximately 1186-approximately 1235. Wälsche Gast.
Wolfram, von Eschenbach, active 12th century--Criticism and interpretation.
Harvard subject headings:
German literature--Middle High German, 1050-1500--History and criticism
Nature in literature.
Philosophy of nature in literature.
Princeton subject headings:
German literature--Middle High German, 1050-1500--History and criticism.
Nature in literature.
Philosophy of nature in literature.