Books written by Robert Langlands.
For his visionary program connecting representation theory to number theory Robert langlands was awarded the Abel Prize in 2018.
On the Functional Equations Satisfied by Eisenstein Series
Base Change for GL(2)
R. Langlands shows, in analogy with Artin's original treatment of one-dimensional p, that at least for tetrahedral p, L(s, p) is equal to the L-function L(s, π) attached to a cuspdidal automorphic representation of the group GL(2, /A), /A being the adéle ring of the field, and L(s, π), whose definition is ultimately due to Hecke, is known to be entire.
James K. Whittemore lectures in mathematics given at Yale University