TY  - RPRT
TI  - An improved method for quantifying soil macroporosity
AU  - V. R. Vermeul
AU  - J.D. Istok
AU  - A. L. Flint
AU  - J.L. Pikul
PY  - 1993
DO  - 10.2136/sssaj1993.03615995005700030030x
UR  - https://pubs.usgs.gov/publication/70199778
ID  - 70199778
ER  -