Kandilarov, Y.,
Vulkov, L., &
Zadorin, A.
(2001).
A Method of Lines Approach to the Numerical Solution of Singularly Perturbed Elliptic Problems. // <I>Numerical<D> Analysis and Its Applications: Proc.: Lecture Notes in Computer Science: Vol. 1988.- Berlin : Springer-Verlag, 2001, p. 451-459..