Шаблон:Cite doi/10.1029.2FJB094iB03p02753
McGill, G. E. (10 березня 1989). Buried topography of Utopia, Mars: Persistence of a giant impact depression. Journal of Geophysical Research. 94: 2753—2759. doi:10.1029/JB094iB03p02753.
McGill, G. E. (10 березня 1989). Buried topography of Utopia, Mars: Persistence of a giant impact depression. Journal of Geophysical Research. 94: 2753—2759. doi:10.1029/JB094iB03p02753.