@article {LucSetLie15,
    AUTHOR = {Luce, Robert and S{\`e}te, Olivier and Liesen, J{\"o}rg},
     TITLE = {A note on the maximal number of zeros of $r(z)-\conj{z}$},
   JOURNAL = {Comput. Methods Funct. Theory},
  FJOURNAL = {Computational Methods and Function Theory},
    VOLUME = {15},
      YEAR = {2015},
    NUMBER = {3},
     PAGES = {439--448},
}