@article{ZNSL_1977_70_a1,
     author = {I. K. Daugavet},
     title = {Convergence of the highest derivatives in projection methods},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {11--18},
     publisher = {mathdoc},
     volume = {70},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1977_70_a1/}
}