@article{kress:1970:arr,
    author = {Kress, R. and Martensen, E.},
     title = {{A}nwendung der {R}echteckregel auf die reelle {H}ilberttransformation
              mit unendlichem {I}ntervall},
   journal = {Z. Angew. Math. Mech.},
  fjournal = {Zeitschrift f{\"u}r Angewandte Mathematik und Mechanik},
    volume = {50},
      year = {1970},
    number = {1-4},
     pages = {T61–T64},
  language = {German},
   mrclass = {65.55},
  mrnumber = {MR0282529 (43 \#8240)},
mrreviewer = {J. G. Herriot},
     zblno = {0207.16203}}