Maurer, Sasaki, Mann, Göhring, Schwarzbauer, and Timpl. (1997) 1997. “Structural and Functional Characterization of the Extracellular Calcium-Binding Protein BM-40 Secreted Protein, Acidic, Rich in Cysteine Osteonectin from the Nematode Caenorhabditis Elegans”. Eur J Biochem 248 (1): 209-16. doi:10.1111/j.1432-1033.1997.t01-1-00209.x.