APA-Zitierstil (7. Ausg.)

Wambsganß, J., & Paczyński, B. (1991). Expected color variations of the gravitationally microlensed QSO 2237 + 0305. Variability of active galaxies.

Chicago-Zitierstil (17. Ausg.)

Wambsganß, Joachim, und Bohdan Paczyński. "Expected Color Variations of the Gravitationally Microlensed QSO 2237 + 0305." Variability of Active Galaxies 1991.

MLA-Zitierstil (9. Ausg.)

Wambsganß, Joachim, und Bohdan Paczyński. "Expected Color Variations of the Gravitationally Microlensed QSO 2237 + 0305." Variability of Active Galaxies, 1991.