@article{ZNSL_2012_405_a6,
     author = {A. E. Guterman and M. A. Efimov},
     title = {Monotone maps on matrices of index one},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {67--96},
     publisher = {mathdoc},
     volume = {405},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2012_405_a6/}
}