@article{DAN_1965_160_4_a8,
     author = {I. V. Skrypnik},
     title = {Periods of $\mathfrak{A}$-closed forms},
     journal = {Doklady Akademii Nauk},
     pages = {772--773},
     publisher = {mathdoc},
     volume = {160},
     number = {4},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1965_160_4_a8/}
}