Web of Science (Clarivate Analytics)

There are 1341 citations for articles published in the journal PP as of June 2020, which increase by 6% compared to 1260 citations as of June 2019.

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Google Scholar

There are 4450 citations for articles published in the journal PP as of December 2019 based on the statistics from Google Scholar.

The 2-year Google-based Journal Impact Factor (2-GJIF) is 0.69.

CABI databases

PP is indexed by CABI, which is one of the 9 databases in the "Web of Science".

Please check the screenshot.

PP has been indexed by several world class databases. For more information, please access the following links:

• ABC chemistry

• Academic Journals Database

• AiritiLibrary

• CABI Database

• CALIS

• ChaoXing Periodicals

• Chemical Abstracts Service (CAS)

• CNKI SCHOLAR

• Cnplinker

• COPAC

• CrossRef

• DTU Findit

• Elektronische Zeitschriftenbibliothek (EZB)

• Geneva Foundation for Medical Education and Research (GFMER)

• GETIT@YALE(Yale University Library)

• Harvard Library E-Journals

• Infotrieve

• i-Scholar

• JournalSeek

• JournalTOCs

• Open Access Journals Search Engine (OAJSE)

• Open Access Library

• Open J-Gate

• PUBDB DESY Publication Database

• Research Bible

• ResearchGate

• SciFinder

• SciLit

• SHERPA/RoMEO

• Stanford University Libraries

• Système Universitaire de Documentation (Sudoc)

• Technische Informationsbibliothek (TIB)

• The Library of Congress

• WanFang

• World Journal Clout Index (2020 STM)

• Zeitschriftendatenbank (ZDB)