@article{MZM_1980_27_2_a11,
     author = {I. K. Daugavet},
     title = {Finite-dimensional projection operators of unit norm in the space~$C$},
     journal = {Matemati\v{c}eskie zametki},
     pages = {267--272},
     publisher = {mathdoc},
     volume = {27},
     number = {2},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1980_27_2_a11/}
}