Lupsasca, Alexandru, Cárdenas-Avendaño, Alejandro, Palumbo, Daniel C, Johnson, Michael, Gralla, Samuel E, Marrone, Daniel P, Galison, Peter, Tiede, Paul, and Keeble, Lennox. The Black Hole Explorer: photon ring science, detection, and shape measurement. Retrieved from https://par.nsf.gov/biblio/10543344. Web. doi:10.1117/12.3019437.

Lupsasca, Alexandru, Cárdenas-Avendaño, Alejandro, Palumbo, Daniel C, Johnson, Michael, Gralla, Samuel E, Marrone, Daniel P, Galison, Peter, Tiede, Paul, & Keeble, Lennox. The Black Hole Explorer: photon ring science, detection, and shape measurement. Retrieved from https://par.nsf.gov/biblio/10543344. https://doi.org/10.1117/12.3019437

Lupsasca, Alexandru, Cárdenas-Avendaño, Alejandro, Palumbo, Daniel C, Johnson, Michael, Gralla, Samuel E, Marrone, Daniel P, Galison, Peter, Tiede, Paul, and Keeble, Lennox. "The Black Hole Explorer: photon ring science, detection, and shape measurement". Country unknown/Code not available: SPIE. https://doi.org/10.1117/12.3019437. https://par.nsf.gov/biblio/10543344.

@article{osti_10543344,
place = {Country unknown/Code not available}, title = {The Black Hole Explorer: photon ring science, detection, and shape measurement}, url = {https://par.nsf.gov/biblio/10543344}, DOI = {10.1117/12.3019437}, abstractNote = {}, journal = {}, publisher = {SPIE}, author = {Lupsasca, Alexandru and Cárdenas-Avendaño, Alejandro and Palumbo, Daniel C and Johnson, Michael and Gralla, Samuel E and Marrone, Daniel P and Galison, Peter and Tiede, Paul and Keeble, Lennox}, editor = {Coyle, Laura E and Perrin, Marshall D and Matsuura, Shuji} }