Houston B, Seawright E, Jefferies D, Hoogland E, Lester D, Whitehead C, Farquharson C (January 1999). "Identification and cloning of a novel phosphatase expressed at high levels in differentiating growth plate chondrocytes". Biochimica et Biophysica Acta. 1448 (3): 500–6. doi:10.1016/s0167-4889(98)00153-0. PMID9990301.
Houston B, Seawright E, Jefferies D, Hoogland E, Lester D, Whitehead C, Farquharson C (January 1999). "Identification and cloning of a novel phosphatase expressed at high levels in differentiating growth plate chondrocytes". Biochimica et Biophysica Acta. 1448 (3): 500–6. doi:10.1016/s0167-4889(98)00153-0. PMID9990301.