@article{FPM_2019_22_6_a10,
     author = {E. I. Stepanova},
     title = {Bifurcations of minimal fillings for four points on the {Euclidean} plane},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {253--261},
     publisher = {mathdoc},
     volume = {22},
     number = {6},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2019_22_6_a10/}
}