Geometric integration of the paraxial equation

Jian-Qiang Sun, Xiao-yan Gu, Xun-Feng Hu. Geometric integration of the paraxial equation. Applied Mathematics and Computation, 218(7):3149-3157, 2011. [doi]

@article{SunGH11-1,
  title = {Geometric integration of the paraxial equation},
  author = {Jian-Qiang Sun and Xiao-yan Gu and Xun-Feng Hu},
  year = {2011},
  doi = {10.1016/j.amc.2011.08.048},
  url = {http://dx.doi.org/10.1016/j.amc.2011.08.048},
  researchr = {https://researchr.org/publication/SunGH11-1},
  cites = {0},
  citedby = {0},
  journal = {Applied Mathematics and Computation},
  volume = {218},
  number = {7},
  pages = {3149-3157},
}