TY  - RPRT
TI  - A Shifted Block Lanczos Algorithm 1: The Block Recurrence
AU  - Grimes, Roger G.
AU  - Lewis, John G.
AU  - Simon, Horst D.
PY  - 1990
UR  - https://ntrs.nasa.gov/citations/19970014139
ID  - 19970014139
ER  -