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 # 3D Plumb flux
 
-3D wave-activity diagnostic defined by equation 5.7 in Plumb, R. A. (1985). On the Three-Dimensional Propagation of Stationary Waves. Journal of the Atmospheric Sciences, 42(3), 217–229. http://doi.org/10.1175/1520-0469(1985)042<0217:OTTDPO>2.0.CO;2
+3D wave-activity diagnostic defined by equation 5.7 in Plumb, R. A. (1985). On the three-dimensional propagation of stationary waves. *Journal of the atmospheric sciences*, 42(3), 217-229.