J. M. Watt. Convergence and stability of discretization methods for functional equations. Comput. J., 11(1):77-82, 1968. [doi]
@article{Watt68,
title = {Convergence and stability of discretization methods for functional equations},
author = {J. M. Watt},
year = {1968},
doi = {10.1093/comjnl/11.1.77},
url = {https://doi.org/10.1093/comjnl/11.1.77},
researchr = {https://researchr.org/publication/Watt68},
cites = {0},
citedby = {0},
journal = {Comput. J.},
volume = {11},
number = {1},
pages = {77-82},
}