TY - JOUR AU - TI - The “thermospheric spoon”: A mechanism for the semiannual density variation JF - Journal of Geophysical Research Atmospheres DO - 10.1029/97ja03335 DA - 1998-03-01 UR - https://www.deepdyve.com/lp/unpaywall/the-thermospheric-spoon-a-mechanism-for-the-semiannual-density-X0J3SIFzAU DP - DeepDyve ER -