@article{AA_1997_9_5_a4,
     author = {A. V. Pazhitnov},
     title = {Rationality of boundary operators in the {Novikov} complex in general position},
     journal = {Algebra i analiz},
     pages = {92--139},
     publisher = {mathdoc},
     volume = {9},
     number = {5},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_1997_9_5_a4/}
}