P&SS: Planetary and Space Science
P&SS.: Planetary and Space Science
PA: Popular Astronomy
PA...: Popular Astronomy
PAAS: Publications of the American Astronomical Society
PAAS.: Publications of the American Astronomical Society
PAB..: Publications of The Astrophysics Branch Ottawa
Pacific J. Math.: Pacific Journal of Mathematics
PAIB: Publications of the Astronomy Institute of Bonn
PAIB.: Publications of the Astronomy Institute of Bonn
PAIKH: Publikationen des Astrophysikalischen Instituts Koenigstuhl-Heidelberg
PAllO: Publications of the Allegheny Observatory of the University of Pittsburgh
PalOc: Paleoceanography
PAMS: Pure and Applied Mathematika Sciences
PAN: Physics of Atomic Nuclei
PAN..: Physics of Atomic Nuclei
PApGe: Pure and Applied Geophysics
PApOp: Pure Applied Optics
ParC: Parallel Computing
ParC.: Parallel Computing
PaReL: Pattern Recognition Letters
PASA: Publications of the Astronomical Society of Australia
PASA.: Publications of the Astronomical Society of Australia
PASAM: Polish Academy of Science Arch Mech
PASAS: Polish Academy of Science Artificial Satellites
PASAu: Proceedings of the Astronomical Society of Australia
PASJ: Publications of the Astronomical Society of Japan
PASJ.: Publications of the Astronomical Society of Japan
PASP: Publications of the Astronomical Society of the Pacific
PASP.: Publications of the Astronomical Society of the Pacific
PASPS: Publications of the Astronomical Society of the Pacific Supplement
PATi: Popular Astronomisk Tidsskrift
PATi.: Popular Astronomisk Tidsskrift
PBeiO: Publications of the Beijing Astronomical Observatory
PCinO: Publications of the Cincinnati Observatory
PCM: Physics and Chemistry of Minerals
PCM..: Physics and Chemistry of Minerals
PCPS: Proc. Cambridge Phil. Soc.
PDAA.: Publications of the Department of Astronomy Austin Texas
PDAO.: Publications of the Dominion Astrophysical Observatory Victoria