@article{ZNSL_1989_178_a0,
     author = {V. I. Vasyunin},
     title = {Two classical theorems of function model theory via the coordinate-free approach},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {5--22},
     year = {1989},
     volume = {178},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1989_178_a0/}
}