by Zoback, M. D., Hamilton, R. M., Crone, A. J., Russ, D. P., McKeown, F. A., Brockman, S. R.
Published in Science (American Association for the Advancement of Science) (29.08.1980)

by Hutton, J.T., Prescott, J.R., Bowman, J.R., Dunham, M.N.E., Crone, A.J., Machette, M.N., Twidale, C.R.
Published in Quaternary science reviews (1994)