@article{RM_1985_40_4_a10,
     author = {S. P. Novikov},
     title = {The geometry of conservative systems of hydrodynamic type. {The} method of averaging for field-theoretical systems},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {85--98},
     publisher = {mathdoc},
     volume = {40},
     number = {4},
     year = {1985},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1985_40_4_a10/}
}