W. Magnus
A Fourier theorem for matrices
Algebraic aspects in the theory of systems of linear differential equations
An infinite system of linear equations arising in diffraction theory
Hill's equation. Part I. General theory
Hill's equation. II: Transformations, approximation, examples
Infinite determinants associated with Hill's equation
Infinite determinants in the theory of Mathieu's and Hill's equations
On the scattering effect of a rough plane surface
The discriminant of Hill's equation
The History of Combinatorial Group Theory18th International Workshop on Computational Electronics
Combinatorial group theory