@article{ZNSL_2010_378_a6,
     author = {Yu. A. Neretin},
     title = {On the beta function of the tube of the light cone},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {73--80},
     publisher = {mathdoc},
     volume = {378},
     year = {2010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2010_378_a6/}
}