APA-viite (7. p.)

Pfahl, E., Rappaport, S., Podsiadlowski, P., & Spruit, H. (2002). A new class of high-mass X-ray binaries: Implications for core collapse and neutron star recoil.

Chicago-viite (17. p.)

Pfahl, E., S. Rappaport, P. Podsiadlowski, ja H. Spruit. A New Class of High-mass X-ray Binaries: Implications for Core Collapse and Neutron Star Recoil. 2002.

MLA-viite (9. p.)

Pfahl, E., et al. A New Class of High-mass X-ray Binaries: Implications for Core Collapse and Neutron Star Recoil. 2002.