@article{MZM_2014_95_2_a9,
     author = {A. A. Razborov},
     title = {On {Tur\'an's} $(3,4)${-Problem} with {Forbidden} {Subgraphs}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {271--281},
     publisher = {mathdoc},
     volume = {95},
     number = {2},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2014_95_2_a9/}
}