Mathematical Problems
by Hilbert, David
by Hilbert, David
by Whitehead, Alfred North
by Galois, Évariste
by Lagrange, J. L. (Joseph Louis)
by Klein, Felix
by Russell, Bertrand
by Reye, Theodor
by Poincaré, Henri
by Schubert, Hermann
by Maxwell, James Clerk
by Nemiroff, Robert J., Bonnell, Jerry T.
by Husted, Michael