Magnetic Reconnection in Three Dimensions: Observations of Electromagnetic Drift Waves in the Adjacent Current Sheet - Ergun, RE; Hoilijoki, S; Ahmadi, N; Schwartz, SJ; Wilder, FD; Burch, JL; Torbert, RB; Lindqvist, P-A; Graham, DB; Strangeway, RJ; Le, Contel O; Holmes, JC; et al. (JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2019)