Formation of crystallographic etch pits on ice, and its application to the study of hailstones
Knight, C. (1966). Formation of crystallographic etch pits on ice, and its application to the study of hailstones. Journal Of Applied Meteorology, 5, 710-714. doi:10.1175/1520-0450(1966)005<0710:FOCEPO>2.0.CO;2