William R. Downs

Increased sedimentation rates and grain sizes 2–4 Myr ago due to the influence of climate change on erosion rates

Peizhen Zhang, P. Molnar, W. Downs, 2001, Nature.

Factor structure and psychometric characteristics of the beck depression inventory-II

C. Chiros, A. Osman, P. Gutierrez, 1997 .

Development and Psychometric Properties of the Student Worry Questionnaire–30

A. Osman, P. Gutierrez, F. Barrios, 2001, Psychological reports.