@article{VMUMM_1989_6_a6,
     author = {T. F. Zhuraev},
     title = {Some fundamental properties of the functor $P_f$},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {29--33},
     publisher = {mathdoc},
     number = {6},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1989_6_a6/}
}