Comparisons of Weak Regular Splittings and Multisplitting Methods. Ludwig Elsner Numerische Mathematik
A Remark on Simultaneous Inclusions of the Zeros of a Polynomial by Gershgorin's Theorem. Ludwig Elsner — 1973 Numerische Mathematik
On the effect of the perturbation of a nonnegative matrix on its Perron eigenvector Ludwig F. Elsner; Christopher R. Johnson; M. Neumann — 1982 Czechoslovak Mathematical Journal