@InProceedings{l98-p226-238,
  AUTHOR    = {Orlando Lee and Yoshiko Wakabayashi},
  TITLE     = {Circuit Covers in Series-Parallel Mixed Graphs},
  YEAR      = 1998,
  BOOKTITLE = {Proc.~of the 3rd Latin American Symposium on Theoretical Informatics (LATIN'98)},
  ADDRESS   = {Campinas, Brazil},
  PAGES     = {226--238},
  KEYWORDS  = {}}