TY  - BOOK
AU  - S. Roser
AU  - Bastian, U.
TI  - PPM star catalogue: positions and proper motions of 181731 stars north of -2.5 degrees declination for equinox and epoch vol.I. zones +80degree to + 30 degree
SN  - 3-86025-000-0
PY  - 1991///
CY  - Heidelberg
PB  - Spektrum Akademischer Verlag GmbH
KW  - PPM star catalogue
KW  - Star catalogue
ER  -