@article{ZNSL_2018_476_a0,
     author = {A. A. Akopyan and A. V. Levichev},
     title = {On $\mathrm{SO}(3,3)$ as the projective group of the space $\mathrm{SO}(3)$},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {5--19},
     publisher = {mathdoc},
     volume = {476},
     year = {2018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2018_476_a0/}
}