@article{sips:1967:rc,
    author = {Sips, Robert},
     title = {R\'epartition du courant alternatif dans un
              conducteur cylindrique de section elliptique},
   journal = {Acad. Roy. Belg. Bull. Cl. Sci. (5)},
    volume = {53},
      year = {1967},
    number = {8},
     pages = {861–878}}