@article{ZNSL_2019_486_a7,
     author = {I. A. Ibragimov and N. V. Smorodina and M. M. Faddeev},
     title = {An extension of local time},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {148--157},
     publisher = {mathdoc},
     volume = {486},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2019_486_a7/}
}