Shaohong Zhu. A scheme with a higher-order discrete invariant for the KdV equation. Appl. Math. Lett., 14(1):17-20, 2001. [doi]
@article{Zhu01:8,
title = {A scheme with a higher-order discrete invariant for the KdV equation},
author = {Shaohong Zhu},
year = {2001},
doi = {10.1016/S0893-9659(00)00105-1},
url = {http://dx.doi.org/10.1016/S0893-9659(00)00105-1},
researchr = {https://researchr.org/publication/Zhu01%3A8},
cites = {0},
citedby = {0},
journal = {Appl. Math. Lett.},
volume = {14},
number = {1},
pages = {17-20},
}