@article{SM_2022_213_2_a1,
     author = {A. A. Borisenko},
     title = {A~necessary and sufficient condition for the existence of simple closed geodesics on regular tetrahedra in spherical space},
     journal = {Sbornik. Mathematics},
     pages = {161--172},
     publisher = {mathdoc},
     volume = {213},
     number = {2},
     year = {2022},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2022_213_2_a1/}
}