Methods in Computational Chemistry, Vol. 2, Edited by Stephen Wilson, Plenum Press, New York, 1988. ISBN 0-306-42946-2, 291 pp. + index and contents. - Walter C. Ermler (Comput. Chem., 1990)

Symbolic Implementation of Arbitrary-order Perturbation Theory Using Computer Algebra: Application to Vibrational-Rotational Analysis of Diatomic Molecules. - John M. Herbert; Walter C. Ermler (Comput. Chem., 1998)

Nodeless Valence (Pseudo)spinors. - Walter C. Ermler; Maria M. Marino (J. Chem. Inf. Comput. Sci., 2001)

Electric dipole transition moments and permanent dipole moments for spin-orbit configuration interaction wave functions. - B. Roostaei; Walter C. Ermler (Comput. Phys. Commun., 2012)

jj-Coupling-based atomic self-consistent-field calculations with relativistic effective core potentials and two-component spinors. - Walter C. Ermler (Comput. Phys. Commun., 2018)

Algorithmic Design of Geometric Data for Molecular Potential Energy Surfaces. - Ahyssa R. Cruz; Walter C. Ermler (Algorithms, 2023)