The superorbital variability and triple nature of the X-ray source 4U 1820-303
Zdziarski, Andrzej A ; Wen, Linqing ; Gierlinski, Marek
Astrophysics of Compact Objects: International Conference on Astrophysics of Compact Objects (AIP Conference Proceedings Volume 968), 2008, Vol.968, p.244-244
[Periódico revisado por pares]