Zartman, R. E., J. P. Quillin, E. B. Fish, and E. L. Atkinson. 2016. “Relationship Between Landscape Aspect and Playa Alignment on the Texas High Plains”. Texas Journal of Agriculture and Natural Resources 16 (May):34-39. https://txjanr.agintexas.org/index.php/txjanr/article/view/138.