@article{MZM_1984_35_4_a12,
     author = {A. D. Milka},
     title = {Shortest lines on convex surfaces},
     journal = {Matemati\v{c}eskie zametki},
     pages = {617--635},
     publisher = {mathdoc},
     volume = {35},
     number = {4},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1984_35_4_a12/}
}