Pseudoinverse formulation of Rayleigh-Schrödinger perturbation theory for the symmetric matrix eigenvalue problem. McCartin, Brian J. — 2003 Journal of Applied Mathematics
Eigenstructure of the equilateral triangle. II: The Neumann problem. McCartin, Brian J. — 2002 Mathematical Problems in Engineering
Eigenstructure of the equilateral triangle. III: The Robin problem. McCartin, Brian J. — 2004 International Journal of Mathematics and Mathematical Sciences