@article{TMF_2024_220_1_a0,
     author = {S. Anastassiou},
     title = {Singularities of {3D} vector fields preserving {the~Martinet} form},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {3--12},
     year = {2024},
     volume = {220},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2024_220_1_a0/}
}