Stratigraphy and changes in hardness of snow measured by hand, ramsonde and snow micro penetrometer: a comparison with planar sections
Pielmeier, C., & Schneebeli, M. (2003). Stratigraphy and changes in hardness of snow measured by hand, ramsonde and snow micro penetrometer: a comparison with planar sections. Cold Regions Science and Technology, 37(3), 393-405. https://doi.org/10.1016/S0165-232x(03)00079-X