@article{CRMECA_2018__346_3_165_0,
     author = {H. Keith Moffatt},
     title = {Helicity},
     journal = {Comptes Rendus. M\'ecanique},
     pages = {165--169},
     publisher = {Elsevier},
     volume = {346},
     number = {3},
     year = {2018},
     doi = {10.1016/j.crme.2017.12.002},
     language = {en},
}