I. B. Parker, J. Crank. Persistent discretization errors in partial differential equations of parabolic type. Comput. J., 7(2):163-167, 1964. [doi]
@article{ParkerC64,
title = {Persistent discretization errors in partial differential equations of parabolic type},
author = {I. B. Parker and J. Crank},
year = {1964},
doi = {10.1093/comjnl/7.2.163},
url = {https://doi.org/10.1093/comjnl/7.2.163},
researchr = {https://researchr.org/publication/ParkerC64},
cites = {0},
citedby = {0},
journal = {Comput. J.},
volume = {7},
number = {2},
pages = {163-167},
}