Giráldez, Copley, Cohen: "HSPG modification by the secreted enzyme Notum shapes the Wingless morphogen gradient." in: Developmental cell, Vol. 2, Issue 5, pp. 667-76, (2002) (PubMed).
Kozmik, Machon, Králová, Kreslová, Paces, Vlcek: "Characterization of mammalian orthologues of the Drosophila osa gene: cDNA cloning, expression, chromosomal localization, and direct physical interaction with Brahma chromatin-remodeling complex." in: Genomics, Vol. 73, Issue 2, pp. 140-8, (2001) (PubMed).