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.
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.
3. Double sporadic metal layers as observed by colocated Fe and Na lidars at Wuhan, China X. Wang et al.
4. Sporadic potassium layers and their connection to sporadic E layers in the mesopause region at Beijing, China Ц. Цзин et al.
5. The Comprehensive Study of Low Thermospheric Sodium Layers during the 24th Solar Cycle Y. Xun et al.
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.