erc:
who: Roman, Irwin
what: Superposition in the Interpretation of Two-Layer Earth-Resistivity Curves
when: 1941
where: https://digital.library.unt.edu/ark:/67531/metadc1036541/
erc-support:
who: University of North Texas Libraries
what: Permanent: Stable Content:
when: 20081203
where: https://digital.library.unt.edu/ark:/67531/