erc:
who: Asgharian, B.
what: A surface area/porosity investigation of four coals: Upper Freeport; Illinois No. 6; New Zealand Stockton; and Panther Valley
when: 19900101
where: https://digital.library.unt.edu/ark:/67531/metadc1052120/
erc-support:
who: University of North Texas Libraries
what: Permanent: Stable Content:
when: 20081203
where: https://digital.library.unt.edu/ark:/67531/