@article{TAM_2001_26_1_a5,
     author = {Dragi Radojevi\'c},
     title = {Two examples of pure radiation fields},
     journal = {Theoretical and applied mechanics},
     pages = {83 },
     publisher = {mathdoc},
     volume = {26},
     number = {1},
     year = {2001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAM_2001_26_1_a5/}
}