00327nas a22001217a 4500008004100000022001400041245002100055260007900076300000700155362000900162650001600171650001800187190206s9999    xx            000 0 und d  a0065-1036  aActa Arithmetica  aWarszawabInstitute of Mathematics of the Polish Academy of Sciencesc1980  av.  a1935  aMathematics  aNumber Theory