DIFFERENCE SPACES AND INVARIANT LINEAR FORMS
1994 年出版189 页ISBN:3540583238;0387583238
OPERATOR FUNCTIONS AND LOCALIZATION OF SPECTRA
2003 年出版259 页ISBN:3540202462;3540202463
SINGULAR MODULAR FORMS AND THETA RELATIONS
1991 年出版172 页ISBN:3540547045;0387547045