6 citations as recorded by crossref.

1. Sporadic potassium layers and their connection to sporadic E layers in the mesopause region at Beijing, China Ц. Цзин et al. https://doi.org/10.12737/22597
2. Investigation on the Distinct Nocturnal Secondary Sodium Layer Behavior Above 95 km in Winter and Summer Over Logan, UT (41.7°N, 112°W) and Arecibo Observatory, PR (18.3°N, 67°W) X. Cai et al. https://doi.org/10.1029/2019JA026746
3. Double sporadic metal layers as observed by colocated Fe and Na lidars at Wuhan, China X. Wang et al. https://doi.org/10.1002/2016JA023489
4. Sporadic potassium layers and their connection to sporadic E layers in the mesopause region at Beijing, China Ц. Цзин et al. https://doi.org/10.12737/stp-32201710
5. The Comprehensive Study of Low Thermospheric Sodium Layers during the 24th Solar Cycle Y. Xun et al. https://doi.org/10.3390/atmos11030284
6. First report of sporadic K layers and comparison with sporadic Na layers at Beijing, China (40.6°N, 116.2°E) J. Jiao et al. https://doi.org/10.1002/2014JA020955