Farrell, P., O’Riordan, E., & Shishkin, G. (2005). A Class of Singularly Perturbed Semilinear Differential Equations with Interior Layers. Mathematics of Computation. https://oaks.kent.edu/node/1324
Farrell, Paul, Eugene O’Riordan, and Grigori Shishkin. 2005. “A Class of Singularly Perturbed Semilinear Differential Equations With Interior Layers”. Mathematics of Computation. https://oaks.kent.edu/node/1324.
Farrell, P., E. O’Riordan, and G. Shishkin. A Class of Singularly Perturbed Semilinear Differential Equations With Interior Layers. Mathematics of Computation, 1 Jan. 2005, https://oaks.kent.edu/node/1324.