@article{VMUMM_1990_4_a23,
     author = {O. N. Ivanov},
     title = {Streamlining two cylinders and two spheres},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {89--93},
     publisher = {mathdoc},
     number = {4},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1990_4_a23/}
}