Nonlinear electrostatic steepening of whistler waves: the guiding factors and dynamics in inhomogeneous systems - O. Agapitov, J. F. Drake, I. Vasko, F. S. Mozer, A. Artemyev, V. Krasnoselskikh, V. Angelopoulos, J. Wygant, G. D. Reeves (Wiley-Blackwell, 2018)
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