@article{DAN_1986_287_6_a9,
     author = {S. P. Novikov},
     title = {Bloch homology. {Critical} points of functions and closed 1-forms},
     journal = {Doklady Akademii Nauk},
     pages = {1321--1324},
     publisher = {mathdoc},
     volume = {287},
     number = {6},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1986_287_6_a9/}
}