TY  - RPRT
TI  - Klumpen - A mesoscale level of classification for soil structure: Rationale
AU  - L.R. Follmer
PY  - 1998
DO  - 10.1016/s1040-6182(98)90190-2
UR  - https://pubs.usgs.gov/publication/70020491
ID  - 70020491
ER  -