Tribute to Vesto Slipher an American astronomer who measured the radial velocities of galaxies - YouTube
Slipher hi-res stock photography and images - Alamy
Vesto Slipher: Uncovering the Cosmos – The Indiana History Blog
Who is Vesto? | Vesto PR
La Aventura de la Ciencia: Vesto Slipher (I): La expansión del universo
1939: Sign of Life on Mars Reported - The New York Times
David Clark Slipher (1911-2000) - Find a Grave Memorial
Tribute to Vesto Slipher an American astronomer who measured the radial velocities of galaxies - YouTube
Amazon.it: Vesto Slipher: Astronomer, Earl C. Slipher, Indiana University Bloomington - Surhone, Lambert M., Timpledon, Miriam T., Marseken, Susan F. - Libri