TY  - RPRT
TI  - Nine optically selected quasars with redshifts larger than 3
AU  - Schmidt, Maarten
AU  - Schneider, Donald P.
AU  - Gunn, James E.
PY  - 1987
UR  - https://ntrs.nasa.gov/citations/19870052043
ID  - 19870052043
ER  -