1. On injective rational coefficient systems

   • R. Doman

   OriginalPaper Pages: 171 - 178

2. The foliation of semigroups by congruence classes

   • K. H. Hofmann
   • W. A. F. Ruppert

   OriginalPaper Pages: 179 - 204

3. Subsemigroups of finitely generated groups with divisor-theory

   • Günter Lettl

   OriginalPaper Pages: 205 - 210

4. On the distribution of ideals in cubic number fields

   • Wolfgang Müller

   OriginalPaper Pages: 211 - 219

5. d _f-cohomology of Lagrangian foliations

   • Izu Vaisman

   OriginalPaper Pages: 221 - 244

6. Buchbesprechungen

   • H. Rindler
   • G. Kowol
   • R. Beig

   BookReview Pages: 245 - 256