Winkler, P. Frank, Coffin, Sadie C., Blair, William P., Long, Knox S., and Kuntz, Kip D. Optical Identification and Spectroscopy of Supernova Remnants in the Galaxy M51. Retrieved from https://par.nsf.gov/biblio/10233794. The Astrophysical Journal 908.1 Web. doi:10.3847/1538-4357/abd77d.

Winkler, P. Frank, Coffin, Sadie C., Blair, William P., Long, Knox S., & Kuntz, Kip D. Optical Identification and Spectroscopy of Supernova Remnants in the Galaxy M51. The Astrophysical Journal, 908 (1). Retrieved from https://par.nsf.gov/biblio/10233794. https://doi.org/10.3847/1538-4357/abd77d

Winkler, P. Frank, Coffin, Sadie C., Blair, William P., Long, Knox S., and Kuntz, Kip D. "Optical Identification and Spectroscopy of Supernova Remnants in the Galaxy M51". The Astrophysical Journal 908 (1). Country unknown/Code not available. https://doi.org/10.3847/1538-4357/abd77d. https://par.nsf.gov/biblio/10233794.

@article{osti_10233794,
place = {Country unknown/Code not available}, title = {Optical Identification and Spectroscopy of Supernova Remnants in the Galaxy M51}, url = {https://par.nsf.gov/biblio/10233794}, DOI = {10.3847/1538-4357/abd77d}, abstractNote = {}, journal = {The Astrophysical Journal}, volume = {908}, number = {1}, author = {Winkler, P. Frank and Coffin, Sadie C. and Blair, William P. and Long, Knox S. and Kuntz, Kip D.}, editor = {null} }