@article{IM2_2011_75_5_a7,
     author = {S. G. Tankeev},
     title = {On the standard conjecture of {Lefschetz} type for complex projective {threefolds.~II}},
     journal = {Izvestiya. Mathematics },
     pages = {1047--1062},
     publisher = {mathdoc},
     volume = {75},
     number = {5},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2011_75_5_a7/}
}