Whittington, D. A., Waheed, A., Ulmasov, B., Shah, G. N., Grubb, J. H., Sly, W. S., & Christianson, D. W. (2001). Crystal structure of the dimeric extracellular domain of human carbonic anhydrase XII, a bitopic membrane protein overexpressed in certain cancer tumor cells. National Academy of Sciences.

Whittington, Douglas A., Abdul Waheed, Barbara Ulmasov, Gul N. Shah, Jeffrey H. Grubb, William S. Sly, and David W. Christianson. Crystal Structure of the Dimeric Extracellular Domain of Human Carbonic Anhydrase XII, a Bitopic Membrane Protein Overexpressed in Certain Cancer Tumor Cells. National Academy of Sciences, 2001.

Whittington, Douglas A., et al. Crystal Structure of the Dimeric Extracellular Domain of Human Carbonic Anhydrase XII, a Bitopic Membrane Protein Overexpressed in Certain Cancer Tumor Cells. National Academy of Sciences, 2001.