@article{10_5427_jsing_2020_21k,
     author = {Piotr Mormul and Fernand Pelletier},
     title = {Symmetries of special 2-flags},
     journal = {Journal of Singularities},
     pages = {187--204},
     publisher = {mathdoc},
     volume = {21},
     year = {2020},
     doi = {10.5427/jsing.2020.21k},
     url = {http://geodesic.mathdoc.fr/articles/10.5427/jsing.2020.21k/}
}