@article{Gomez-Gonzalez97-contrastive,
  author	= {G{\'o}mez-Gonz{\'a}lez, Mar\'ia L. A.},
  year		= {1997},
  title		= {A contrastive critique of Topic and Theme in Functional Grammar (FG) and Systemic Functional Grammar (SFG)},
  journal	= {RESLA},
  volume	= {12},
  pages		= {75--94}
}