Spacetimes with a preferred null direction and a two-dimensional group of isometries: the null dust case
1987 ◽
Vol 4
(3)
◽
pp. 599-618
◽
1989 ◽
Vol 6
(5)
◽
pp. 683-695
◽
2017 ◽
Vol 34
(8)
◽
pp. 087701
◽
Keyword(s):
Keyword(s):