1. Combinatorial properties of binary semigroups

   • Kim Ki-Hang Butler

   OriginalPaper Pages: 3 - 46

2. Über die Nörlund-Summierbarkeit von Potenzreihen

   • W. Luh

   OriginalPaper Pages: 47 - 60

3. Unique holomorphic solution of a singular partial differential equation with a double pole

   • J. Kajiwara

   OriginalPaper Pages: 61 - 71

4. Notes on the structure of modules over complete discrete valuation rings, I

   • I. A. Amin

   OriginalPaper Pages: 73 - 83

5. Research problems

   • A. Hajnal
   • P. Erdős

   OriginalPaper Pages: 85 - 85