On the distance to the North Polar Spur and the local CO-H2 factorDOI: info:10.1051/0004-6361/201629453v. 595A131
Lallement, R., Snowden, S., Kuntz, K. D., Dame, T. M., Koutroumpa, D., Grenier, I., and Casandjian, J. M. 2016. "On the distance to the North Polar Spur and the local CO-H2 factor." Astronomy and Astrophysics, 595 A131. https://doi.org/10.1051/0004-6361/201629453.