The Quarterly Journal of Mathematics · 1950 · 18 citations · 0 references
Natural SciencesMathematicsPhysicsDifferential EquationsMathematical PhysicsTheoretical PhysicsEigenvalue ProblemsSpecial FunctionsEigenfunction ExpansionsEigenvalue ComputationNonlinear Eigenvalue ProblemsSturm - Liouville TheorySturm-liouville Theory
D. B. SEARS, E. C. TITCHMARSH; SOME EIGENFUNCTION FORMULAE, The Quarterly Journal of Mathematics, Volume 1, Issue 1, 1 January 1950, Pages 165–175, https:/