Münster, 1991 253 + [11] pp. + 9 ills. out of text, 21cm., softcover, text in German, Doctoral dissertation (Inaugural-Dissertation zur Erlangung des Doktorgrades der Philosophischen Fakultät der Westfälischen Wilhelms-Universität zu Münster Westf.), stamp at verso of title page, text is clean and bright, good condition, R109587