@article{KJM_2021_45_5_a8,
     author = {Sergey Stepanov and Josef Mike\v{s}},
     title = {Application of the {Hopf} {Maximum} {Principle} to the {Theory} of {Geodesic} {Mappings}},
     journal = {Kragujevac Journal of Mathematics},
     pages = {781 },
     publisher = {mathdoc},
     volume = {45},
     number = {5},
     year = {2021},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KJM_2021_45_5_a8/}
}