@article{RLINA_1976_8_61_1-2_a18,
     author = {Lal, Krishna B. and Shafiullah},
     title = {On wave solutions of the field equations of general relativity},
     journal = {Atti della Accademia nazionale dei Lincei. Rendiconti della Classe di scienze fisiche, matematiche e naturali},
     pages = {115--120},
     publisher = {mathdoc},
     volume = {Ser. 8, 61},
     number = {1-2},
     year = {1976},
     zbl = {0369.53037},
     mrnumber = {0469102},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RLINA_1976_8_61_1-2_a18/}
}