@article{article, title  = {{Waves and null congruences in a draining bathtub}},

 publisher = {{World Scientific Publishing}},

 url = {{https://eprints.whiterose.ac.uk/id/eprint/107653 https://doi.org/10.1142/S0218271816410042 }},

 year = {{2016}},

 month = {{8}},

 author = {{Dempsey D and Dolan SR}},

 doi = {{10.1142/S0218271816410042}},

 volume = {{25}},

 journal = {{International Journal of Modern Physics D}},

 issue = {{9}},

 note = {{Accessed on 2025/11/30}}}