@article{TRSPY_1985_167_a8,
     author = {Yu. N. Kiselev},
     title = {Linear time-optimality problem and the unit sphere of initial values of a~conjugate variable},
     journal = {Informatics and Automation},
     pages = {179--182},
     publisher = {mathdoc},
     volume = {167},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1985_167_a8/}
}