Rest, A., Scolnic, D., Foley, R., Huber, M., Chornock, R., Narayan, G., …Waters, C. (2014). Cosmological Constraints from Measurements of Type Ia Supernovae Discovered during the First 1.5 yr of the Pan-STARRS1 Survey. Astrophysical Journal, 795(1), https://doi.org/10.1088/0004-637x/795/1/44