Wu, Q., Killeen, T. L., McEwen, D., Solomon, S. C., Guo, W., Sivjee, G. G., & Reeves, J. M. (2002). Observation of the mesospheric and lower thermospheric 10-hour wave in the northern polar region. Journal Of Geophysical Research-Space Physics, 107. doi:10.1029/2001JA000192