Alva, V., Dunin-Horkawicz, S., Habeck, M., Coles, M., & Lupas, A. N. (2009). The GD box: A widespread noncontiguous supersecondary structural element. Wiley Subscription Services, Inc., A Wiley Company.

Alva, Vikram, Stanislaw Dunin-Horkawicz, Michael Habeck, Murray Coles, and Andrei N. Lupas. The GD Box: A Widespread Noncontiguous Supersecondary Structural Element. Wiley Subscription Services, Inc., A Wiley Company, 2009.

Alva, Vikram, et al. The GD Box: A Widespread Noncontiguous Supersecondary Structural Element. Wiley Subscription Services, Inc., A Wiley Company, 2009.