The
$$SO(3,1) \times U(1)$$
S
O
(
3
,
1
)
×
U
(
1
)
-gauge invariant approach to charged bosons in relativistic magnetars
1989 ◽
Vol 78
(2)
◽
pp. 185-191
◽
2005 ◽
Vol 242
(7)
◽
pp. R58-R60
◽