TY  - RPRT
TI  - An Approximate Direct Inverse as a Preconditioner for Ill-conditioned Problems.
AU  - Lee, Chung Hyun
AU  - Jin-Fa, Lee.
AU  - Langston, William L.
AU  - Zinser, Brian Frederick
AU  - Dang, Vinh Quang
AU  - Huang, Andy
AU  - Campione, Salvatore
PY  - 2020
UR  - https://www.osti.gov/biblio/1761591
ID  - 1761591
ER  -