@article{ZNSL_2014_426_a3,
     author = {A. S. Blagovestchensky},
     title = {Plane waves, {Batmen's} solutions and sources at infinity},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {23--33},
     publisher = {mathdoc},
     volume = {426},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2014_426_a3/}
}